5305-00-956-9529

Find complete technical information, availability, and procurement data for: 5305-00-956-9529
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-956-9529

Item Name Code

06657

Assigment Date

01/01/1962 (64 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

0.120 inches minimum and 0.151 inches maximum thread length, undercut pan no. 2 head style, 2a thread class, right-hand thread direction, 0.156 inches minimum and 0.187 inches maximum 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: 2a
Thread Direction: right-hand
Thread Length: 0.120 inches minimum and 0.151 inches maximum
Fastener Length: 0.156 inches minimum and 0.187 inches maximum
Head Style: undercut pan no. 2
Head Diameter: 0.171 inches minimum and 0.181 inches maximum
Head Height: 0.041 inches minimum and 0.046 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 56
Screw Material: steel comp 1010
Screw Material Document And Classification: astm a108 assn std single material response
Screw Surface Treatment: zinc
Screw Surface Treatment Document And Classification: qq-z-325,ty 2,cl 3 fed spec single treatment response
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
10167838	Machine Screw
186399	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-956-9529?

The FSCG of the NSN 5305-00-956-9529 is 5305

Does the NSN 5305-00-956-9529 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-956-9529 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 5305-00-956-9529 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-956-9529 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 5305-00-956-9529 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962