5310-01-727-6664

Find complete technical information, availability, and procurement data for: 5310-01-727-6664
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-727-6664

Item Name Code

29730

Assigment Date

03/13/2025 (1 year ago)

An item of unique shapes and cross-sectional configurations specifically designed with dimensional tolerances and finishes. It may be metallic and/or nonmetallic and must be able to mate with or join to like items with aircraft application. The item may consist of more then one (1) piece to form an assembly. Do not use if a more specific item name exists. Excludes:bracket (1), structural component, aircraft.

0.267 inches minimum and 0.282 inches maximum overall height, 0.620 inches maximum washer outside diameter, right-hand thread direction, 3a thread class, prevailing torque all metal design locking feature

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Washer Outside Diameter: 0.620 inches maximum
Overall Height: 0.267 inches minimum and 0.282 inches maximum
Nut Style: hexagon
Washer Thickness: 0.023 inches minimum
Width Across Flats: 0.430 inches minimum and 0.440 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.3750 inches
Material: steel corrosion resisting overall
Material Document And Classification: ams5525,ams5731,ams5732,ams5737,ams5853 national std single material response overall
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams2410 national std single treatment response overall
Specification/Standard Data: 80205-nas-21043 professional/industrial association standard

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
MS21043-6N	Extended Washer Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-01-727-6664?

The FSCG of the NSN 5310-01-727-6664 is 5310

Does the NSN 5310-01-727-6664 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-727-6664 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-01-727-6664 contain precious materials?

Item contains silver.

Does NSN 5310-01-727-6664 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-01-727-6664 was assigned to the Federal Catalog?

It was assigned 1 year ago, on Thu, Mar 13, 2025