5305-00-021-6281

Find complete technical information, availability, and procurement data for: 5305-00-021-6281
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-021-6281

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

0.500 inches nominal fastener length, 0.287 inches minimum and 0.309 inches maximum head diameter, 2a thread class, 0.500 inches maximum thread length, round 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 Length: 0.500 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: round
Head Diameter: 0.287 inches minimum and 0.309 inches maximum
Head Height: 0.107 inches minimum and 0.120 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 36
Screw Material: steel comp 1010 or steel comp 1011 or steel comp 1015 or steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1020
Screw Material Document And Classification: qq-s-633 fed spec all material responses
Screw Surface Treatment: cadmium or zinc
Thread Series Designator: unf

FAQs

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

What is the FSCG of the NSN 5305-00-021-6281?

The FSCG of the NSN 5305-00-021-6281 is 5305

Does the NSN 5305-00-021-6281 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-021-6281 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 5305-00-021-6281 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-021-6281 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 5305-00-021-6281 was assigned to the Federal Catalog?

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