NAS1831AC3B21

View detailed technical data, stock status, and sourcing information for: NAS1831AC3B21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-568-8953

Item Name Code

40280

Assigment Date

11/13/2008 (17 years ago)

A stud, turnlock fastener over which may be assembled an eyelet, turnlock fastener. Stud(s) without cam slots or cam lead threads are provided with a crosspin or eared nut for locking with the mating receptacle, turnlock fastener. May be spring loaded. For like items having a threaded fastener, see screw assembly, panel or screw, panel fastener.

3a left internal (includes thru thread) thread class, right-hand left internal (includes thru thread) thread direction, right-hand right internal thread direction, 0.250 inches minimum left internal (includes thru thread) thread length, 3a right internal thread class

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 left internal (includes thru thread)
Thread Class: 3a right internal
Thread Direction: right-hand right internal
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.250 inches minimum left internal (includes thru thread)
Thread Length: 0.250 inches minimum right internal
Length: 1.313 inches nominal
End Item Identification: a-10 aircraft
Cross-Sectional Shape: octagon
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 40 left internal (includes thru thread)
Thread Quantity Per Inch: 40 right internal
Nominal Thread Size: 0.112 inches left internal (includes thru thread)
Nominal Thread Size: 0.112 inches right internal
Part Name Assigned By Controlling Agency: post,electrical mechanical equipment
Material: aluminum alloy overall
Material Document And Classification: qq-a-225/8 fed spec single material response overall
Style Designator: left internal and right internal threads
Thread Series Designator: unc left internal (includes thru thread)
Thread Series Designator: unc right internal

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
NAS1831AC3B21	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-568-8953?

The FSCG of the NSN 5340-01-568-8953 is 5340

Does NSN 5340-01-568-8953 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 5340-01-568-8953 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-568-8953 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 5340-01-568-8953 was assigned to the Federal Catalog?

It was assigned 17 years ago, on Thu, Nov 13, 2008