91087-20A018

View detailed technical data, stock status, and sourcing information for: 91087-20A018
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-553-2515

Item Name Code

13205

Assigment Date

10/30/1974 (51 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

0.6412 inches minimum and 0.6562 inches maximum overall length, 1.9800 inches minimum and 2.0000 inches maximum flange outside diameter, 0.0887 inches minimum and 0.0937 inches maximum flange width, 1.4393 inches minimum and 1.4403 inches maximum body outside diameter, 1.2505 inches minimum and 1.2515 inches maximum body inside diameter

Product Characteristics

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

Overall Length: 0.6412 inches minimum and 0.6562 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 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
Surface Finish: 63.0 microinches outside diameter surface of body
Special Features: plastic,polytetrafluoroethylene liner bonded to left end surface of flange
Material: aluminum alloy 2024 outer layer
Material: plastic polytetrafluoroethylene inner layer
Material Document And Classification: qq-a-200/3,t8511 fed spec single material response or qq-a-225/6,t851 fed spec single material response outer layer
Surface Treatment: anodize or chromate outer layer
Surface Treatment Document And Classification: mil-a-8625,type 1 or type 2 mil spec single treatment response or mil-c-5541 mil spec single treatment response outer layer
Style Designator: solid, external flange one end

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FAQs

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

What is the FSCG of the NSN 3120-00-553-2515?

The FSCG of the NSN 3120-00-553-2515 is 3120

Does the NSN 3120-00-553-2515 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-553-2515 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 3120-00-553-2515 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-553-2515 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 3120-00-553-2515 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Wed, Oct 30, 1974