00221

View detailed technical data, stock status, and sourcing information for: 00221
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-208-5297

Item Name Code

01857

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, 0.247 inches minimum and 0.251 inches maximum width across flats, hexagon nut style, 0.234 inches minimum and 0.250 inches maximum nut height, 2b 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: 2b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.234 inches minimum and 0.250 inches maximum
Width Across Flats: 0.247 inches minimum and 0.251 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Bearing Surface Type: chamfered
Bearing Surface Finish: 125.0 microinches
Material: aluminum alloy 2011 overall
Material Document And Classification: qq-a-225/3,t3 fed spec single material response overall
Surface Treatment: anodize overall
Surface Treatment Document And Classification: mil-a-8625,ty 2 mil spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-576-1083	No Name Available	01/17/1966

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
00221	Hexagon Plain Nut
4152079P1	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-208-5297?

The FSCG of the NSN 5310-00-208-5297 is 5310

Does the NSN 5310-00-208-5297 have a Schedule B code assigned?

Yes, the Schedule B code is 7616995195

Does NSN 5310-00-208-5297 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 5310-00-208-5297 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-208-5297 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 5310-00-208-5297 was assigned to the Federal Catalog?

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