M81934/2-20A011

View detailed technical data, stock status, and sourcing information for: M81934/2-20A011
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-512-5474

Item Name Code

13205

Assigment Date

08/03/1974 (51 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

1.9800 inches minimum and 2.0000 inches maximum flange outside diameter, 1.4393 inches minimum and 1.4403 inches maximum body outside diameter, 0.0887 inches minimum and 0.0937 inches maximum flange width, 1.2505 inches minimum and 1.2515 inches maximum body inside diameter, 0.4225 inches minimum and 0.4375 inches maximum overall length

Product Characteristics

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

Overall Length: 0.4225 inches minimum and 0.4375 inches maximum
Body Outside Diameter: 1.4393 inches minimum and 1.4403 inches maximum
Body Inside Diameter: 1.2505 inches minimum and 1.2515 inches maximum
Flange Outside Diameter: 1.9800 inches minimum and 2.0000 inches maximum
Flange Width: 0.0887 inches minimum and 0.0937 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
Surface Finish: 125.0 microinches inside diameter surface of body
Surface Finish: 125.0 microinches outside diameter surface of body
Surface Finish: 125.0 microinches outside diameter surface of flange
Surface Finish: 125.0 microinches left end surface of body and flange
Surface Finish: 125.0 microinches right end surface of body
Surface Finish: 125.0 microinches right end surface of left flange
Special Features: plastic liner bonded to left end surface of flange
Material: aluminum alloy 7075 outer layer
Material: plastic polytetrafluoroethylene inner layer
Material Document And Classification: qq-a-200/11 t6 fed spec single material response outer layer
Surface Treatment: anodize outer layer
Surface Treatment Document And Classification: mil-a-8625 mil spec single treatment response outer layer
Style Designator: solid, external flange one end

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
103-0120-011	Sleeve Bearing
ATLF20A11	Sleeve Bearing
FBJW40TF46M11	Sleeve Bearing
FBR20A11	Sleeve Bearing
KJN20A011-141	Sleeve Bearing
M81934/2-20A011	Sleeve Bearing
STSKJ101-20A011	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-512-5474?

The FSCG of the NSN 3120-00-512-5474 is 3120

Does the NSN 3120-00-512-5474 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-512-5474 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 3120-00-512-5474 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-512-5474 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 3120-00-512-5474 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sat, Aug 3, 1974