91253A638

View detailed technical data, stock status, and sourcing information for: 91253A638
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-599-5082

Item Name Code

16282

Assigment Date

09/30/2011 (14 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.781 inches nominal head diameter, flat countersunk head style, 3.250 inches nominal fastener length, right-hand thread direction, 1.250 inches minimum and 1.813 inches maximum thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Thread Length: 1.250 inches minimum and 1.813 inches maximum
Fastener Length: 3.250 inches nominal
Head Style: flat countersunk
Head Diameter: 0.781 inches nominal
Head Height: 0.234 inches nominal
Internal Drive Style: hexagon
End Item Identification: mrap caiman rws
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.219 inches nominal
Thread Quantity Per Inch: 16
Countersink Angle: 82.0 degrees nominal
Part Name Assigned By Controlling Agency: black-oxide alloy steel flat head socket head cap screw
Special Features: class 10.9 zinc yellow-chromate plated steel hex head cap screw
Material: steel overall
Surface Treatment: oxide overall
Thread Series Designator: unc

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
91253A638	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-599-5082?

The FSCG of the NSN 5305-01-599-5082 is 5305

Does the NSN 5305-01-599-5082 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-599-5082 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 5305-01-599-5082 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-599-5082 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 5305-01-599-5082 was assigned to the Federal Catalog?

It was assigned 14 years ago, on Fri, Sep 30, 2011