H-4-021

Comprehensive specifications and application details for: H-4-021 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: H-4-021. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
H-4-021
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-259-9571
Item Name Code
13205
Federal Item Identification Guide
A045A0
Assigment Date
07/23/1987

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

0.2050 inches minimum and 0.2100 inches maximum overall length, 0.3115 inches minimum and 0.3120 inches maximum body outside diameter, ams 5643 assn std 1st material response or mil-t-8808,type 1or type 2 mil spec 2nd material response overall material document and classification, 0.2500 inches minimum and 0.2515 inches maximum body inside diameter, square all corners corner shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-259-9571 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter
0.2500 inches minimum and 0.2515 inches maximum
Body Outside Diameter
0.3115 inches minimum and 0.3120 inches maximum
Corner Shape
square all corners
Overall Length
0.2050 inches minimum and 0.2100 inches maximum
Material Document And Classification
ams 5643 assn std 1st material response or mil-t-8808,type 1or type 2 mil spec 2nd material response overall
Material
steel comp 630 or steel comp 321 overall
Style Designator
solid, plain, no outside flanges
Surface Finish
8.0 microinches outside diameter surface of body
Surface Treatment Document And Classification
qq-c-320 fed spec single treatment response outside diameter surface of body
Surface Treatment
cadmium outside diameter surface of body

Frequently Asked Questions

Find quick answers to common questions about bearing: H-4-021. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-259-9571?
The FSCG of the NSN 3120-01-259-9571 is 3120
Does the NSN 3120-01-259-9571 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-01-259-9571 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 3120-01-259-9571 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-259-9571 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 3120-01-259-9571 was assigned to the Federal Catalog?
It was assigned 37 years ago, on Thu, Jul 23, 1987

Price & Availability

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