5305-01-356-8978

Find complete technical information, availability, and procurement data for: 5305-01-356-8978
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-356-8978

Item Name Code

29294

Assigment Date

04/13/1992 (34 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.

flat countersunk head style, 3.953 inches minimum and 4.000 inches maximum fastener length, 3a thread class, 0.531 inches nominal thread length, 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 Class: 3a
Thread Direction: right-hand
Thread Length: 0.531 inches nominal
Fastener Length: 3.953 inches minimum and 4.000 inches maximum
Head Style: flat countersunk
Head Diameter: 0.625 inches minimum and 0.635 inches maximum
Grip Diameter: 0.3108 inches minimum and 0.3117 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Grip Length: 3.428 inches minimum and 3.448 inches maximum
Width Across Flats: 0.1885 inches minimum and 0.1905 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Material: steel comp 4140 or steel comp 4340 or steel comp 8740 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: unjf
Specification/Standard Data: 80205-nas335 professional/industrial association standard

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
NAS335CA37	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-356-8978?

The FSCG of the NSN 5305-01-356-8978 is 5305

Does the NSN 5305-01-356-8978 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-356-8978 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 5305-01-356-8978 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-356-8978 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 5305-01-356-8978 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Mon, Apr 13, 1992