1. Home /
  2. Catalog /
  3. Unmounted Plain Bearings /
  4. 3120-01-321-4378

3120-01-321-4378 Thrust Washer Bearing

Comprehensive specifications and application details for NSN: 3120-01-321-4378.

Summary

Explore detailed summary information for bearing: 3120-01-321-4378. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-321-4378
Item Name Code
13211
Federal Item Identification Guide
A045A0
Assigment Date
06/18/1990

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.

round center hole shape style, 4.1470 inches nominal outside diameter, rectangular cross-sectional shape style, square all corners corner shape, 3.9810 inches nominal diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-321-4378 . Find dimensions, materials, tolerances, performance characteristics, etc.

Center Hole Shape Style
round
Corner Shape
square all corners
Cross-Sectional Shape Style
rectangular
Diameter
3.9810 inches nominal
Outside Diameter
4.1470 inches nominal
Overall Thickness
0.0890 inches minimum and 0.0900 inches maximum
Material
steel corrosion resisting overall
Special Features
low pressure compressor,front frame;acft model hu25a atf3-6-4c engine
Style Designator
round
Surface Condition
ground

Related Bearings

Explore the various bearing models associated with this NSN. Click on any bearing below to view detailed technical data, performance ratings, and application guidelines.

Part Number Name
3002605-8 Thrust Washer Bearing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-01-321-4378. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-321-4378?
The FSCG of the NSN 3120-01-321-4378 is 3120
Does the NSN 3120-01-321-4378 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105008
Does NSN 3120-01-321-4378 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 3120-01-321-4378 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-321-4378 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 3120-01-321-4378 was assigned to the Federal Catalog?
It was assigned 36 years ago, on Mon, Jun 18, 1990

Price & Availability

Fill out the form to get pricing and availability details for the bearing: 3120-01-321-4378

Popular Bearings

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

250-8020-00-0
3120-01-227-8604
Thrust Washer Bearing
250-8040-00-0
3110-01-419-4113
Annular Ball Bearing
250-8300-00-0
3110-01-534-6184
Cylindrical Roller Bearing
250-9110-00
3120-00-766-6157
Sleeve Bearing
250-9111-00-0
3120-01-518-2437
Sleeve Bearing
250-9120-00
3120-01-137-2213
Sleeve Bearing
250-9130-00
3110-01-153-9056
Annular Ball Bearing
250-9470-00-0
3120-01-227-8645
Sleeve Bearing
2500-2 ITEM 22
3110-01-149-5448
Bearing Retaining Plate
2500-2 ITEM 23
3130-01-142-8499
Pillow Block Cap
2500.2112.C
3120-01-524-4090
Sleeve Bearing
2500-393REVE ITEM 18
3120-01-201-8992
Sleeve Bushing
2500-40000
3110-01-174-9983
Thrust Ball Bearing
2500-40210
3110-01-194-3939
Bearing Ball
2500-40303
3110-01-194-3938
Bearing Ball