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.

right-hand thread direction, 5.4 millimeters maximum head height, 16.0 millimeters nominal fastener length, 16.0 millimeters nominal thread length, hexagon extended washer head style

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