43-S-4377-316

View detailed technical data, stock status, and sourcing information for: 43-S-4377-316
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-273-4942

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

3a thread class, 0.875 inches maximum thread length, flat chamfer head style, 0.875 inches nominal fastener 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: 0.875 inches maximum
Fastener Length: 0.875 inches nominal
Head Style: flat chamfer
Head Diameter: 0.306 inches minimum and 0.312 inches maximum
Head Height: 0.185 inches minimum and 0.190 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.156 inches minimum and 0.158 inches maximum
Thread Quantity Per Inch: 32
Hardness Rating: 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
Minimum Yield Strength: 140000 pounds per square inch
Material: steel comp 4135 or steel comp 4137 or steel comp 8635 or steel comp 8640 overall
Material Document And Classification: qq-s-624 fed spec all material responses overall
Surface Treatment: zinc overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 1 type and 11 style

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
12Z57PC306	Socket Head Cap Screw
43-S-4377-316	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-273-4942?

The FSCG of the NSN 5305-00-273-4942 is 5305

Does the NSN 5305-00-273-4942 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-273-4942 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 5305-00-273-4942 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-273-4942 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 5305-00-273-4942 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963