5305-01-386-6746

Find complete technical information, availability, and procurement data for: 5305-01-386-6746
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-386-6746

Item Name Code

18257

Assigment Date

02/11/1994 (32 years ago)

A generally flat item varied in shape with or without a centrally located hole, designed to hold seals in place. It must have drilled and/or tapped holes for mounting purposes. Excludes:cover, access, shim and spacer, plate. See also flange (as modified).

2a thread class, right-hand thread direction, hexagon head style, 0.559 inches minimum and 0.630 inches maximum thread length, 0.630 inches nominal fastener 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: 0.559 inches minimum and 0.630 inches maximum
Fastener Length: 0.630 inches nominal
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
Nominal Thread Diameter: 0.250 inches
Features Provided: finished head
Thread Quantity Per Inch: 28
Material: steel overall
Material Document And Classification: sae j429 gr8 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, ty2 cl2 fed spec single treatment response overall
Thread Series Designator: unf

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
B1821AH025F063N	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-386-6746?

The FSCG of the NSN 5305-01-386-6746 is 5305

Does the NSN 5305-01-386-6746 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-386-6746 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 5305-01-386-6746 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-386-6746 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 5305-01-386-6746 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Feb 11, 1994