1663257

View detailed technical data, stock status, and sourcing information for: 1663257
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-161-9143

Item Name Code

40280

Assigment Date

09/12/1983 (42 years ago)

A headless fastener externally threaded on both ends with each threaded portion of one but not necessarily the same nominal diameter. It is designed to be locked in place by either a ring, lock, serrated or a ring, lock, keyed.

0.200 inches nominal left internal (includes thru thread)0.140 inches nominal right external thread length, 2b left internal (includes thru thread)2a right external thread class, 0.187 inches nominal flange diameter, right-hand right external thread direction, right-hand left internal (includes thru thread) thread direction

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 left internal (includes thru thread)2a right external
Thread Direction: right-hand right external
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.200 inches nominal left internal (includes thru thread)0.140 inches nominal right external
Flange Diameter: 0.187 inches nominal
Flange Thickness: 0.542 inches minimum and 0.552 inches maximum
Length: 0.737 inches nominal
Thread Quantity Per Inch: 40 left internal (includes thru thread)
Thread Quantity Per Inch: 56 right external
Nominal Thread Size: 0.086 inches right external
Nominal Thread Size: 0.112 inches left internal (includes thru thread)
Material: steel comp 303se standoff
Material Document And Classification: astma582 assn std single material response standoff
Surface Treatment: passivate standoff
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response standoff
Style Designator: flanged with left internal thread
Thread Series Designator: unc left internal (includes thru thread)
Thread Series Designator: unc right external

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
1663257	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-161-9143?

The FSCG of the NSN 5340-01-161-9143 is 5340

Does NSN 5340-01-161-9143 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 5340-01-161-9143 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-161-9143 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 5340-01-161-9143 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, Sep 12, 1983