MIL-B-81349/2

View detailed technical data, stock status, and sourcing information for: MIL-B-81349/2
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-040-1033

Item Name Code

13205

Assigment Date

04/30/1977 (49 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.

0.6725 inches minimum and 0.6875 inches maximum overall length, 0.5007 inches minimum and 0.5017 inches maximum body outside diameter, 0.8550 inches minimum and 0.8750 inches maximum flange outside diameter, 0.3755 inches minimum and 0.3765 inches maximum body inside diameter, 0.0575 inches minimum and 0.0625 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: 0.6725 inches minimum and 0.6875 inches maximum
Body Outside Diameter: 0.5007 inches minimum and 0.5017 inches maximum
Body Inside Diameter: 0.3755 inches minimum and 0.3765 inches maximum
Flange Outside Diameter: 0.8550 inches minimum and 0.8750 inches maximum
Flange Width: 0.0575 inches minimum and 0.0625 inches maximum
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Corner Shape: undercut left flange body corner
Special Features: plastic liner bonded to left end surface of flange
Material: plastic polytetrafluoroethylene inner layer
Material: steel comp 630 outer layer
Material Document And Classification: ams 5643 assn std single material response outer layer
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
3120-00-321-9228	No Name Available	03/01/1978

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
07-282-06C020	Sleeve Bearing
119-21-06-020	Sleeve Bearing
123-2006C020	Sleeve Bearing
91087-06C020	Sleeve Bearing
ADLF06C020	Sleeve Bearing
AHJF06C020	Sleeve Bearing
ATTF06SS020	Sleeve Bearing
BJ12TH06C020	Sleeve Bearing
FBJW12TH-06C020	Sleeve Bearing
FBRR-06C020	Sleeve Bearing
KDJ06C020-241	Sleeve Bearing
KDJ06C020-342	Sleeve Bearing
KRJ6HDSB-06C020M	Sleeve Bearing
M81934/2-06C020	Sleeve Bearing
MIL-B-81349/2	Sleeve Bearing
ST4M127-06C020	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-040-1033?

The FSCG of the NSN 3120-01-040-1033 is 3120

Does the NSN 3120-01-040-1033 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-01-040-1033 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 3120-01-040-1033 contain precious materials?

Precious metal content is unknown

Does NSN 3120-01-040-1033 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 3120-01-040-1033 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sat, Apr 30, 1977