74D291037-2071

View detailed technical data, stock status, and sourcing information for: 74D291037-2071
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-171-3445

Item Name Code

40280

Assigment Date

02/06/1984 (42 years ago)

0.375 inches nominal flange diameter, 3b left internal (includes thru thread)3a right external thread class, right-hand right external thread direction, right-hand left internal (includes thru thread) thread direction, 0.250 inches nominal left internal (includes thru thread)0.199 inches nominal right external thread 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: 3b left internal (includes thru thread)3a right external
Thread Direction: right-hand right external
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.250 inches nominal left internal (includes thru thread)0.199 inches nominal right external
Flange Diameter: 0.375 inches nominal
Flange Thickness: 4.750 inches nominal
Length: 5.050 inches nominal
Thread Quantity Per Inch: 32 left internal (includes thru thread)
Thread Quantity Per Inch: 32 right external
Nominal Thread Size: 0.190 inches left internal (includes thru thread)
Nominal Thread Size: 0.190 inches right external
Special Features: thread undercut 0.137 inch dia by 0.101 inch wide
Material: copper alloy 630 standoff
Material Document And Classification: ams 4640 assn std single material response standoff
Style Designator: flanged with left internal thread
Thread Series Designator: unf right external
Thread Series Designator: unjf left internal (includes thru thread)

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
74D291037-2071	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-171-3445?

The FSCG of the NSN 5340-01-171-3445 is 5340

Does NSN 5340-01-171-3445 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 5340-01-171-3445 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-171-3445 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 5340-01-171-3445 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, Feb 6, 1984