91211A203

View detailed technical data, stock status, and sourcing information for: 91211A203
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-551-3630

Item Name Code

18257

Assigment Date

05/15/2007 (19 years ago)

An item having two or more prongs which may have transverse hole(s), slot(s), dowel pin(s), pad(s), in or on the end of each prong, to provide a means to accomplish the engagement or disengagement of gear(s), shaft(s), clutch, or the like. The opposite end has facilities for a shaft, lever, or the like. This item is designed to be used on vehicular applications such as automobiles, tanks, construction equipment, and the like.

hexagon head style, 1.750 inches nominal fastener length, a2a thread class, 1.750 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: a2a
Thread Direction: right-hand
Thread Length: 1.750 inches nominal
Fastener Length: 1.750 inches nominal
Head Style: hexagon
Head Height: 0.3906 inches nominal
Width Between Flats: 0.9375 inches nominal
Locking Feature: patch locking feature
End Item Identification: mrap buffalo mk2a2
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 11
Minimum Tensile Strength: 150000 pounds per square inch
Special Features: temperature rating on lockpatch is -65f to +250f
Material: steel property class 8.8 overall
Surface Treatment: chromate zinc 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
6AX1335X	Hexagon Head Cap Screw
91211A203	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-551-3630?

The FSCG of the NSN 5305-01-551-3630 is 5305

Does the NSN 5305-01-551-3630 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-551-3630 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 5305-01-551-3630 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-551-3630 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 5305-01-551-3630 was assigned to the Federal Catalog?

It was assigned 19 years ago, on Tue, May 15, 2007