5305-00-021-2555

Find complete technical information, availability, and procurement data for: 5305-00-021-2555
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-021-2555

Item Name Code

06660

Assigment Date

04/17/1968 (58 years ago)

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

pan no. 2 head style, right-hand thread direction, 0.570 inches minimum and 0.600 inches maximum thread length, 2a thread class, 0.660 inches minimum and 0.690 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: 0.570 inches minimum and 0.600 inches maximum
Fastener Length: 0.660 inches minimum and 0.690 inches maximum
Head Style: pan no. 2
Head Diameter: 0.306 inches minimum and 0.322 inches maximum
Head Height: 0.085 inches minimum and 0.096 inches maximum
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Nonmachine Thread Style: wide flute (type t)
Primary Washer Outside Diameter: 0.372 inches minimum and 0.383 inches maximum
Primary Washer Style: dome internal teeth
Primary Washer Material Thickness: 0.020 inches minimum and 0.025 inches maximum
Special Features: triangular shaped point in lieu of flutes
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: +45-m,fscm 16764 mfr ref single 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
1961565	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-021-2555?

The FSCG of the NSN 5305-00-021-2555 is 5305

Does the NSN 5305-00-021-2555 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-021-2555 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 5305-00-021-2555 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-021-2555 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 5305-00-021-2555 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Apr 17, 1968