5305-01-521-8956

Find complete technical information, availability, and procurement data for: 5305-01-521-8956
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-521-8956

Item Name Code

29294

Assigment Date

07/09/2004 (22 years ago)

A rigid circular shaped metal item with a centrally located aperture. It has mounting holes and is specifically designed to mount and position the components of a brake (as modified). It also serves to prevent dirt and other foreign matter from entering the braking mechanism. Excludes:items which are used as a dust shield only.

3a thread class, 1.516 inches minimum and 1.546 inches maximum fastener length, 0.531 inches nominal thread length, right-hand thread direction, flat countersunk 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: 0.531 inches nominal
Fastener Length: 1.516 inches minimum and 1.546 inches maximum
Head Style: flat countersunk
Head Diameter: 0.477 inches nominal
Grip Diameter: 0.3115 inches minimum and 0.3120 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Thread Quantity Per Inch: 24
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: nickel alloy 718 overall
Material Document And Classification: ams5662 assn std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec all treatment responses overall
Thread Series Designator: unjf

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
11923-5-16	Close Tolerance Screw
HT4027-5-16	Close Tolerance Screw
ST3M557-5-16	Close Tolerance Screw
WC4027-5-16	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-521-8956?

The FSCG of the NSN 5305-01-521-8956 is 5305

Does the NSN 5305-01-521-8956 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-521-8956 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 5305-01-521-8956 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-521-8956 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 5305-01-521-8956 was assigned to the Federal Catalog?

It was assigned 22 years ago, on Fri, Jul 9, 2004