5305-00-285-5271

Find complete technical information, availability, and procurement data for: 5305-00-285-5271
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-285-5271

Item Name Code

06660

Assigment Date

01/01/1963 (63 years ago)

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

right-hand thread direction, 0.500 inches nominal fastener length, 0.376 inches maximum thread length, 2a thread class, 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: 2a
Thread Direction: right-hand
Thread Length: 0.376 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: fillister
Head Diameter: 0.250 inches minimum and 0.270 inches maximum
Head Height: 0.102 inches minimum and 0.113 inches maximum
Washer Quantity: 1
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum primary washer
Primary Washer Outside Diameter: 0.243 inches minimum and 0.257 inches maximum
Primary Washer Style: split helical ring
Primary Washer Material Thickness: 0.031 inches minimum
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response 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
454430	Assembled Washer Screw
5305002855271	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-285-5271?

The FSCG of the NSN 5305-00-285-5271 is 5305

Does the NSN 5305-00-285-5271 have a Schedule B code assigned?

Yes, the Schedule B code is 7115900000

Does NSN 5305-00-285-5271 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 5305-00-285-5271 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-285-5271 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 5305-00-285-5271 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963