257-22-2

View detailed technical data, stock status, and sourcing information for: 257-22-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-621-9821

Item Name Code

22846

Assigment Date

01/01/1963 (63 years ago)

A terminal designed to be affixed, usually at one end, to a post, stud, chassis, or the like for mounting. It has provisions for attachment of wire(s) or similar electrical conductor(s) in order to establish an electrical connection and could require the use of tool(s) for attachment of wire. For post like terminals, see terminal stud. Excludes:clip, electrical; terminal, quick disconnect and terminal feedthru.

flat chamfer head style, right-hand thread direction, 0.312 inches nominal fastener length, 0.156 inches minimum thread length, 2a thread class

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: 0.156 inches minimum
Fastener Length: 0.312 inches nominal
Head Style: flat chamfer
Head Diameter: 0.151 inches minimum and 0.156 inches maximum
Head Height: 0.066 inches minimum and 0.072 inches maximum
Shoulder Diameter: 0.101 inches minimum and 0.106 inches maximum first shoulder
Shoulder Length: 0.153 inches minimum and 0.159 inches maximum first shoulder
Internal Drive Style: slot
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 64
Shoulder Shape: round first shoulder
Material: copper alloy 268 overall
Material Document And Classification: qq-b-611,grade c-canc fed spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ci-1,fscm 89944 mfr ref single treatment response overall
Thread Series Designator: unf

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
257-22-2	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-621-9821?

The FSCG of the NSN 5305-00-621-9821 is 5305

Does the NSN 5305-00-621-9821 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-621-9821 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 5305-00-621-9821 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-621-9821 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 5305-00-621-9821 was assigned to the Federal Catalog?

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