637450PC41

View detailed technical data, stock status, and sourcing information for: 637450PC41
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-273-6310

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

0.250 inches maximum thread length, right-hand thread direction, 3a thread class, flat chamfer head style, 0.250 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: 3a
Thread Direction: right-hand
Thread Length: 0.250 inches maximum
Fastener Length: 0.250 inches nominal
Head Style: flat chamfer
Head Diameter: 0.221 inches minimum and 0.226 inches maximum
Head Height: 0.134 inches minimum and 0.138 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.138 inches
Width Across Flats: 0.093 inches minimum and 0.094 inches maximum
Thread Quantity Per Inch: 40
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
12Z57PC640	Socket Head Cap Screw
166378PC1	Socket Head Cap Screw
637450PC41	Socket Head Cap Screw
684130	Socket Head Cap Screw
763189PC4	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-273-6310?

The FSCG of the NSN 5305-00-273-6310 is 5305

Does the NSN 5305-00-273-6310 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-273-6310 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 5305-00-273-6310 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-273-6310 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 5305-00-273-6310 was assigned to the Federal Catalog?

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