A51B97526-19

View detailed technical data, stock status, and sourcing information for: A51B97526-19
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-344-3921

Item Name Code

13206

Assigment Date

08/28/1991 (34 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

2.1000 inches nominal flange outside diameter, 0.7200 inches minimum and 0.7350 inches maximum body inside diameter, 0.8755 inches minimum and 0.8765 inches maximum body outside diameter, 0.4050 inches minimum and 0.4130 inches maximum overall length, 0.0580 inches minimum and 0.0600 inches maximum flange width

Product Characteristics

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

Overall Length: 0.4050 inches minimum and 0.4130 inches maximum
Body Outside Diameter: 0.8755 inches minimum and 0.8765 inches maximum
Body Inside Diameter: 0.7200 inches minimum and 0.7350 inches maximum
Flange Outside Diameter: 2.1000 inches nominal
Flange Width: 0.0580 inches minimum and 0.0600 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Material: steel comp xm-12 overall
Material Document And Classification: ams 5659 assn std single material response overall
Style Designator: solid, external flange one end

Replaces National Stock Numbers

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

NSN	Name	Date
3120-00-817-9316	No Name Available	05/01/2003

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
A51B97526-19	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-344-3921?

The FSCG of the NSN 3120-01-344-3921 is 3120

Does the NSN 3120-01-344-3921 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-344-3921 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 3120-01-344-3921 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-344-3921 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 3120-01-344-3921 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Wed, Aug 28, 1991