5305-01-657-5136

Find complete technical information, availability, and procurement data for: 5305-01-657-5136
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-657-5136

Item Name Code

18257

Assigment Date

08/17/2016 (9 years ago)

A nonmetallic unthreaded item generally round in cross-sectional shape which, when placed on/in a machined-out portion of the threads of a screw or bolt, or inserted into the machined-out portion of the threads of a nut, locks the item, to which it is fixed, to the attached mating member and prevents loosening during excessive vibration. Excludes:bolt, self-locking; nut, self-locking (as modified); screw, self-locking; and insert, screw thread.

right-hand thread direction, 2a thread class, hexagon head style, 2.00 inches nominal fastener length, 2.00 inches nominal 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: 2a
Thread Direction: right-hand
Thread Length: 2.00 inches nominal
Fastener Length: 2.00 inches nominal
Head Style: hexagon
Head Height: 0.378 inches minimum and 0.403 inches maximum
Width Between Flats: 0.922 inches minimum and 0.938 inches maximum
End Item Identification: mrap - m-atv ui w/ogpk
Nominal Thread Diameter: 0.6250 inches
Thread Quantity Per Inch: 11
Part Name Assigned By Controlling Agency: screw, cap, hex .61 - 11 tab g8 mb
Color: black overall
Material: steel overall
Material Document And Classification: sae j429 assn std single material response overall
Surface Treatment: phosphate zinc overall
Thread Series Designator: unc

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
4000414	Hexagon Head Cap Screw
4000414003	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-657-5136?

The FSCG of the NSN 5305-01-657-5136 is 5305

Does the NSN 5305-01-657-5136 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-657-5136 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 5305-01-657-5136 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-657-5136 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 5305-01-657-5136 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Wed, Aug 17, 2016