2637505PC56

View detailed technical data, stock status, and sourcing information for: 2637505PC56
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-256-6740

Item Name Code

22846

Assigment Date

03/17/1971 (55 years ago)

A headless item of various shapes, usually cylindrical, having either circular or longitudinal groove(s). Its length must not exceed 12 inches (304 mm). Excludes:rod, grooved, headless; shaft (as modified); and pin, vehicular leaf spring shackle.

1.162 inches minimum and 1.247 inches maximum fastener length, 3a thread class, right-hand thread direction, 0.262 inches minimum and 0.292 inches maximum thread length, fillister head style

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: 0.262 inches minimum and 0.292 inches maximum
Fastener Length: 1.162 inches minimum and 1.247 inches maximum
Head Style: fillister
Head Diameter: 0.465 inches minimum and 0.535 inches maximum
Head Height: 0.116 inches minimum and 0.136 inches maximum
Shoulder Diameter: 0.309 inches minimum and 0.310 inches maximum first shoulder
Shoulder Length: 0.755 inches minimum and 0.760 inches maximum first shoulder
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 190000 pounds per square inch
Minimum Yield Strength: 170000 pounds per square inch
Shoulder Shape: round first shoulder
Material: steel corrosion resisting overall
Material Document And Classification: ams 5643 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-s-5002 mil 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
2637505PC56	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-256-6740?

The FSCG of the NSN 5305-00-256-6740 is 5305

Does the NSN 5305-00-256-6740 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-256-6740 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 5305-00-256-6740 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-256-6740 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 5305-00-256-6740 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Mar 17, 1971