NAS1831C3B21

View detailed technical data, stock status, and sourcing information for: NAS1831C3B21
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part NAS1831C3B21 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-257-0590

Item Name Code

40280

Assigment Date

06/11/1987 (39 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.184 inches minimum and 0.192 inches maximum width across flats, 1.308 inches minimum and 1.318 inches maximum length, left internal and right internal threads style designator, 80250-nas1831 professional/industrial association standard specification/standard data, hexagon cross-sectional shape

Product Characteristics

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

Length: 1.308 inches minimum and 1.318 inches maximum
Cross-Sectional Shape: hexagon
Width Across Flats: 0.184 inches minimum and 0.192 inches maximum
Style Designator: left internal and right internal threads
Specification/Standard Data: 80250-nas1831 professional/industrial association standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-125-0374	No Name Available	07/06/1998
5340-00-914-7009	No Name Available	02/22/2010
5340-01-092-7458	No Name Available	07/01/1992

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
70547-6CH	Spacing Threaded Standoff
NAS1786C04-2	Spacing Threaded Standoff
NAS1831C3B21	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-257-0590?

The FSCG of the NSN 5340-01-257-0590 is 5340

Does NSN 5340-01-257-0590 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 5340-01-257-0590 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-257-0590 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 5340-01-257-0590 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Jun 11, 1987