5305-01-661-6391

Find complete technical information, availability, and procurement data for: 5305-01-661-6391
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-661-6391

Item Name Code

18257

Assigment Date

03/10/2017 (9 years ago)

A two-piece metallic item, one piece usually tubular in appearance and flanged at one end, the other piece a plain tooth or spur washer or retaining ring. It is primarily used for lining and reinforcing the edges of holes. The unflanged end is designed to be inserted through a hole and retained in place by being crimped over the plain or tooth washer or retaining ring or by clinching action between the spur washer and the flanged end. Excludes:eyelet, metallic.

16.0 millimeters nominal fastener length, hexagon extended washer head style, 16.0 millimeters nominal thread length, 5.4 millimeters maximum head height, right-hand 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 Direction: right-hand
Thread Length: 16.0 millimeters nominal
Fastener Length: 16.0 millimeters nominal
Head Style: hexagon extended washer
Head Height: 5.4 millimeters maximum
Width Between Flats: 7.78 millimeters minimum and 8.00 millimeters maximum
Extended Washer Diameter: 11.8 millimeters maximum
Locking Feature: lockwasher primary washer
End Item Identification: 01-622-0440
Nominal Thread Diameter: 5.0 millimeters
Thread Pitch In Millimeters: 0.8
Special Features: finish per fm100:pl20, type i, grade 3, class a
Material: steel overall
Thread Series Designator: m

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
4315542	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-661-6391?

The FSCG of the NSN 5305-01-661-6391 is 5305

Does the NSN 5305-01-661-6391 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-661-6391 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 5305-01-661-6391 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-661-6391 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5305-01-661-6391 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Fri, Mar 10, 2017