3A9-81A

Comprehensive specifications and application details for: 3A9-81A Thrust Washer Bearing.

Summary

Explore detailed summary information for bearing: 3A9-81A. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
3A9-81A
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-057-4235
Item Name Code
13211
Federal Item Identification Guide
A045A0
Assigment Date
03/13/1978

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.

0.4325 inches minimum and 0.4375 inches maximum outside diameter, square all corners corner shape, 0.1930 inches minimum and 0.1950 inches maximum diameter, rectangular cross-sectional shape style, round center hole shape style

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-057-4235 . Find dimensions, materials, tolerances, performance characteristics, etc.

Center Hole Shape Style
round
Corner Shape
square all corners
Cross-Sectional Shape Style
rectangular
Diameter
0.1930 inches minimum and 0.1950 inches maximum
Outside Diameter
0.4325 inches minimum and 0.4375 inches maximum
Overall Thickness
0.0540 inches minimum and 0.0560 inches maximum
Material
lubricant lubrication
Material
plastic overall
Style Designator
round

Replaces

The NSN 3120-01-057-4235 is used in place of the following discontinued or alternate items:

NSN Name Date
3120-01-059-1881 No Name Available 04/01/1986

Frequently Asked Questions

Find quick answers to common questions about bearing: 3A9-81A. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-057-4235?
The FSCG of the NSN 3120-01-057-4235 is 3120
Does the NSN 3120-01-057-4235 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105008
Does NSN 3120-01-057-4235 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 3120-01-057-4235 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-057-4235 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 3120-01-057-4235 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Mon, Mar 13, 1978

Price & Availability

Fill out the form to get pricing and availability details for the bearing: 3A9-81A

Popular Bearings

Browse our selection of high-demand, high-performance bearings:

4D
3120-00-602-0865
Rod End Plain Bearing
4D-0298
3120-01-047-0923
Self-Aligning Plain Bearing
4D-8648
3110-00-606-9574
Tapered Roller Bearing Cup
4D0002-03-040
3120-01-388-5149
Sleeve Bushing
4D0002-05-008
3120-01-329-7860
Sleeve Bushing
4D0002-05-012
3120-01-363-0638
Sleeve Bushing
4D0002-05-017
3120-01-541-9709
Sleeve Bushing
4D0002-06-022
3120-01-447-7148
Sleeve Bushing
4D0002-06-038
3120-01-447-3961
Sleeve Bushing
4D0002-06-055
3120-01-446-8926
Sleeve Bushing
4D0002-07-015
3120-01-419-9173
Sleeve Bushing
4D0002-07-017
3120-01-419-9175
Sleeve Bushing
4D0002-07-018
3120-01-419-9176
Sleeve Bushing
4D0002-07-025
3120-01-446-8895
Sleeve Bushing
4D0002-07-042
3120-01-446-8900
Sleeve Bushing