A51M21502-11

View detailed technical data, stock status, and sourcing information for: A51M21502-11
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-922-1491

Item Name Code

13206

Assigment Date

05/14/1972 (54 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

0.9260 inches minimum and 0.9360 inches maximum overall length, 0.5000 inches minimum and 0.5030 inches maximum body inside diameter, 125.0 microinches intermediate layer surface finish, 0.7480 inches minimum and 0.7490 inches maximum body outside diameter, square all corners corner shape

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 0.9260 inches minimum and 0.9360 inches maximum
Body Outside Diameter: 0.7480 inches minimum and 0.7490 inches maximum
Body Inside Diameter: 0.5000 inches minimum and 0.5030 inches maximum
Corner Shape: square all corners
Surface Finish: 125.0 microinches intermediate layer
Material: steel comp 410 overall
Material Document And Classification: ams 5612 assn std single material response overall
Style Designator: solid, plain, no outside flanges

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
A51M21502-11	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-922-1491?

The FSCG of the NSN 3120-00-922-1491 is 3120

Does the NSN 3120-00-922-1491 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-922-1491 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 3120-00-922-1491 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-922-1491 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 3120-00-922-1491 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, May 14, 1972