5340-01-374-3237

Find complete technical information, availability, and procurement data for: 5340-01-374-3237
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-374-3237

Item Name Code

40280

Assigment Date

04/21/1993 (33 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

0.246 inches minimum and 0.254 inches maximum width across flats, 2b right internal thread class, hexagon cross-sectional shape, right-hand right internal thread direction, 0.433 inches minimum and 0.443 inches maximum cross-sectional length

Product Characteristics

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

Thread Class: 2b right internal
Thread Direction: right-hand right internal
Cross-Sectional Length: 0.433 inches minimum and 0.443 inches maximum
Cross-Sectional Shape: hexagon
Width Across Flats: 0.246 inches minimum and 0.254 inches maximum
Thread Quantity Per Inch: 32 right internal
Nominal Thread Size: 0.138 inches right internal
Special Features: material: aluminum alloy 2024 or aluminum alloy 2011 overall;material document and classification: qq-a-225/6,t4 fed spec 1st material response or qq-a-225/3,t4 fed spec 2nd material response overall;surface treatment: anodize overall;surface treatment document and classification: mil-a-8625,ty 1,cl 1 mil spec single treatment response or mil-a-8625,ty 2,cl 1 mil spec single treatment response overall;bearing surface type: flat
Thread Series Designator: unc left internal (includes thru thread)
Specification/Standard Data: 80205-nas1831 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
NAS1831A4C07	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-374-3237?

The FSCG of the NSN 5340-01-374-3237 is 5340

Does the NSN 5340-01-374-3237 have a Schedule B code assigned?

Yes, the Schedule B code is 7616995195

Does NSN 5340-01-374-3237 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 5340-01-374-3237 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-374-3237 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-374-3237 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Wed, Apr 21, 1993