5305-01-378-9256

Find complete technical information, availability, and procurement data for: 5305-01-378-9256
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-378-9256

Item Name Code

06657

Assigment Date

08/25/1993 (32 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

0.794 inches minimum and 0.880 inches maximum thread length, hexagon head style, 2a thread class, right-hand thread direction, 0.850 inches minimum and 0.880 inches maximum 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: 0.794 inches minimum and 0.880 inches maximum
Fastener Length: 0.850 inches minimum and 0.880 inches maximum
Head Style: hexagon
Head Height: 0.080 inches minimum and 0.093 inches maximum
Width Between Flats: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 40
Screw Material: steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022
Screw Material Document And Classification: 66 fed std all material responses
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416, ty 2, cl 2 fed spec all treatment responses
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
MS51849-27	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-378-9256?

The FSCG of the NSN 5305-01-378-9256 is 5305

Does the NSN 5305-01-378-9256 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-378-9256 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 5305-01-378-9256 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-378-9256 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 5305-01-378-9256 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Wed, Aug 25, 1993