5340-01-221-1991

Find complete technical information, availability, and procurement data for: 5340-01-221-1991
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-221-1991

Item Name Code

40280

Assigment Date

11/25/1985 (40 years ago)

0.309 inches minimum and 0.317 inches maximum width across flats, hexagon cross-sectional shape, right-hand right internal thread direction, 0.495 inches minimum and 0.505 inches maximum cross-sectional length, 2b 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: 2b right internal
Thread Direction: right-hand right internal
Cross-Sectional Length: 0.495 inches minimum and 0.505 inches maximum
Cross-Sectional Shape: hexagon
Width Across Flats: 0.309 inches minimum and 0.317 inches maximum
Thread Quantity Per Inch: 32 right internal
Nominal Thread Size: 0.138 inches right internal
Special Features: material: steel comp 303 or steel comp 303se overall;material document and classification: astm a582 assn std all material;surface treatment: passivate overall;surface treatment document and classification: qq-p-35 fed spec single treatment response overall
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
NAS1831-5C08	Spacing Threaded Standoff
NAS1831C5C08	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-221-1991?

The FSCG of the NSN 5340-01-221-1991 is 5340

Does NSN 5340-01-221-1991 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 5340-01-221-1991 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-221-1991 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 5340-01-221-1991 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Mon, Nov 25, 1985