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NAS1831 Female-Female Standoffs

Standoffs are used to create space between 2 objects in an assembly. In the world of Electronic Hardware and Electronic Components, Standoffs are most commonly used on Printed Circuit Boards, Motherboards and Panels.

Lyn-Tron Standoffs are threaded and available in:

Each of these thread configurations is used to fasten components together and in the following materials:

We offer all common Inch Thread Sizes for female-female standoffs, including:

Also, our NAS1831 female-female standoffs can be in Metric Threads M2, M2.5, M3, and more!

While we do stock a large variety of threads, OD’s, Profiles, and lengths, we can also do custom manufacturing in any configuration your application requires!

What Makes a NAS1831 Female-Female Standoff Unique?

The NAS (National Aerospace Standards) designation is given to this type of standoff to indicate a part that meets voluntary standards developed by the Aerospace Industries Association (AIA).

The NAS designation indicates that you are getting a consistently reliable part that meets rigorous standards for product integrity in high-stress, advanced technology systems.

The internal threading is different in female-female standoffs compared to others. The female-female is threaded only inside, whereas a male-female standoff is threaded both internally as well as externally.

Standoff Selection Guide

If you’re trying to determine if the NAS1831 female-female standoff is the right option for your assembly, check out our standoff selection guide resource. It will help you pick out the right part for your next project.

Standoff Hardware - Selection Guide - Custom Standoffs

More Questions

Lyn-Tron has been manufacturing electronic components and hardware for over 50 years! All Lyn-Tron electronic hardware is made in the USA and held to the highest quality standards.

Feel free to Contact us today if you have any questions about selecting a swage standoff for your project, need more information, or if you would like to request custom parts and OEM-designed hardware for your print.

3 (3/16") NAS1831 Female-Female Standoffs

A (#2-56)

Part Number Outside Diameter Material Female Thread Length Details
NAS1831A3A03 3 (3/16") Aluminum (Anodize) A (#2-56) 3/16" (0.187")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 3/16" (0.187")
NAS1831A3A04 3 (3/16") Aluminum (Anodize) A (#2-56) 1/4" (0.25")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 1/4" (0.25")
NAS1831A3A05 3 (3/16") Aluminum (Anodize) A (#2-56) 5/16" (0.312")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 5/16" (0.312")
NAS1831A3A06 3 (3/16") Aluminum (Anodize) A (#2-56) 3/8" (0.375")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 3/8" (0.375")
NAS1831A3A07 3 (3/16") Aluminum (Anodize) A (#2-56) 7/16" (0.437")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 7/16" (0.437")
NAS1831A3A08 3 (3/16") Aluminum (Anodize) A (#2-56) 1/2" (0.5")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 1/2" (0.5")
NAS1831A3A09 3 (3/16") Aluminum (Anodize) A (#2-56) 9/16" (0.562")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 9/16" (0.562")
NAS1831A3A10 3 (3/16") Aluminum (Anodize) A (#2-56) 5/32" (0.156")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 5/32" (0.156")
NAS1831A3A11 3 (3/16") Aluminum (Anodize) A (#2-56) 11/64" (0.171")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 11/64" (0.171")
NAS1831A3A12 3 (3/16") Aluminum (Anodize) A (#2-56) 3/16" (0.187")
  • Outside Diameter: 3 (3/16")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 3/16" (0.187")

4 (1/4") NAS1831 Female-Female Standoffs

A (#2-56)

Part Number Outside Diameter Material Female Thread Length Details
NAS1831A4A03 4 (1/4") Aluminum (Anodize) A (#2-56) 3/16" (0.187")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 3/16" (0.187")
NAS1831A4A04 4 (1/4") Aluminum (Anodize) A (#2-56) 1/4" (0.25")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 1/4" (0.25")
NAS1831A4A05 4 (1/4") Aluminum (Anodize) A (#2-56) 5/16" (0.312")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 5/16" (0.312")
NAS1831A4A06 4 (1/4") Aluminum (Anodize) A (#2-56) 3/8" (0.375")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 3/8" (0.375")
NAS1831A4A07 4 (1/4") Aluminum (Anodize) A (#2-56) 7/16" (0.437")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 7/16" (0.437")
NAS1831A4A08 4 (1/4") Aluminum (Anodize) A (#2-56) 1/2" (0.5")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 1/2" (0.5")
NAS1831A4A09 4 (1/4") Aluminum (Anodize) A (#2-56) 9/16" (0.562")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 9/16" (0.562")
NAS1831A4A10 4 (1/4") Aluminum (Anodize) A (#2-56) 5/32" (0.156")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 5/32" (0.156")
NAS1831A4A11 4 (1/4") Aluminum (Anodize) A (#2-56) 11/64" (0.171")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 11/64" (0.171")
NAS1831A4A12 4 (1/4") Aluminum (Anodize) A (#2-56) 3/16" (0.187")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: A (#2-56)
  • Length: 3/16" (0.187")

C (#4-40)

Part Number Outside Diameter Material Female Thread Length Details
NAS1831A4C03 4 (1/4") Aluminum (Anodize) C (#4-40) 3/16" (0.187")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/16" (0.187")
NAS1831A4C04 4 (1/4") Aluminum (Anodize) C (#4-40) 1/4" (0.25")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 1/4" (0.25")
NAS1831A4C05 4 (1/4") Aluminum (Anodize) C (#4-40) 5/16" (0.312")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 5/16" (0.312")
NAS1831A4C06 4 (1/4") Aluminum (Anodize) C (#4-40) 3/8" (0.375")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/8" (0.375")
NAS1831A4C07 4 (1/4") Aluminum (Anodize) C (#4-40) 7/16" (0.437")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 7/16" (0.437")
NAS1831A4C08 4 (1/4") Aluminum (Anodize) C (#4-40) 1/2" (0.5")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 1/2" (0.5")
NAS1831A4C09 4 (1/4") Aluminum (Anodize) C (#4-40) 9/16" (0.562")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 9/16" (0.562")
NAS1831A4C10 4 (1/4") Aluminum (Anodize) C (#4-40) 5/32" (0.156")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 5/32" (0.156")
NAS1831A4C11 4 (1/4") Aluminum (Anodize) C (#4-40) 11/64" (0.171")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 11/64" (0.171")
NAS1831A4C12 4 (1/4") Aluminum (Anodize) C (#4-40) 3/16" (0.187")
  • Outside Diameter: 4 (1/4")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/16" (0.187")

5 (5/16") NAS1831 Female-Female Standoffs

C (#4-40)

Part Number Outside Diameter Material Female Thread Length Details
NAS1831A5C03 5 (5/16") Aluminum (Anodize) C (#4-40) 3/16" (0.187")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/16" (0.187")
NAS1831A5C04 5 (5/16") Aluminum (Anodize) C (#4-40) 1/4" (0.25")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 1/4" (0.25")
NAS1831A5C05 5 (5/16") Aluminum (Anodize) C (#4-40) 5/16" (0.312")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 5/16" (0.312")
NAS1831A5C06 5 (5/16") Aluminum (Anodize) C (#4-40) 3/8" (0.375")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/8" (0.375")
NAS1831A5C07 5 (5/16") Aluminum (Anodize) C (#4-40) 7/16" (0.437")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 7/16" (0.437")
NAS1831A5C08 5 (5/16") Aluminum (Anodize) C (#4-40) 1/2" (0.5")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 1/2" (0.5")
NAS1831A5C09 5 (5/16") Aluminum (Anodize) C (#4-40) 9/16" (0.562")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 9/16" (0.562")
NAS1831A5C10 5 (5/16") Aluminum (Anodize) C (#4-40) 5/32" (0.156")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 5/32" (0.156")
NAS1831A5C11 5 (5/16") Aluminum (Anodize) C (#4-40) 11/64" (0.171")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 11/64" (0.171")
NAS1831A5C12 5 (5/16") Aluminum (Anodize) C (#4-40) 3/16" (0.187")
  • Outside Diameter: 5 (5/16")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/16" (0.187")

6 (3/8") NAS1831 Female-Female Standoffs

C (#4-40)

Part Number Outside Diameter Material Female Thread Length Details
NAS1831A6C03 6 (3/8") Aluminum (Anodize) C (#4-40) 3/16" (0.187")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/16" (0.187")
NAS1831A6C04 6 (3/8") Aluminum (Anodize) C (#4-40) 1/4" (0.25")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 1/4" (0.25")
NAS1831A6C05 6 (3/8") Aluminum (Anodize) C (#4-40) 5/16" (0.312")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 5/16" (0.312")
NAS1831A6C06 6 (3/8") Aluminum (Anodize) C (#4-40) 3/8" (0.375")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/8" (0.375")
NAS1831A6C07 6 (3/8") Aluminum (Anodize) C (#4-40) 7/16" (0.437")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 7/16" (0.437")
NAS1831A6C08 6 (3/8") Aluminum (Anodize) C (#4-40) 1/2" (0.5")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 1/2" (0.5")
NAS1831A6C09 6 (3/8") Aluminum (Anodize) C (#4-40) 9/16" (0.562")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 9/16" (0.562")
NAS1831A6C10 6 (3/8") Aluminum (Anodize) C (#4-40) 5/32" (0.156")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 5/32" (0.156")
NAS1831A6C11 6 (3/8") Aluminum (Anodize) C (#4-40) 11/64" (0.171")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 11/64" (0.171")
NAS1831A6C12 6 (3/8") Aluminum (Anodize) C (#4-40) 3/16" (0.187")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: C (#4-40)
  • Length: 3/16" (0.187")

E (#6-32)

Part Number Outside Diameter Material Female Thread Length Details
NAS1831A6E03 6 (3/8") Aluminum (Anodize) E (#6-32) 3/16" (0.187")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 3/16" (0.187")
NAS1831A6E04 6 (3/8") Aluminum (Anodize) E (#6-32) 1/4" (0.25")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 1/4" (0.25")
NAS1831A6E05 6 (3/8") Aluminum (Anodize) E (#6-32) 5/16" (0.312")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 5/16" (0.312")
NAS1831A6E06 6 (3/8") Aluminum (Anodize) E (#6-32) 3/8" (0.375")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 3/8" (0.375")
NAS1831A6E07 6 (3/8") Aluminum (Anodize) E (#6-32) 7/16" (0.437")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 7/16" (0.437")
NAS1831A6E08 6 (3/8") Aluminum (Anodize) E (#6-32) 1/2" (0.5")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 1/2" (0.5")
NAS1831A6E09 6 (3/8") Aluminum (Anodize) E (#6-32) 9/16" (0.562")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 9/16" (0.562")
NAS1831A6E10 6 (3/8") Aluminum (Anodize) E (#6-32) 5/32" (0.156")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 5/32" (0.156")
NAS1831A6E11 6 (3/8") Aluminum (Anodize) E (#6-32) 11/64" (0.171")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 11/64" (0.171")
NAS1831A6E12 6 (3/8") Aluminum (Anodize) E (#6-32) 3/16" (0.187")
  • Outside Diameter: 6 (3/8")
  • Material: Aluminum (Anodize)
  • Female Thread: E (#6-32)
  • Length: 3/16" (0.187")