3120-00-831-3705

Find complete technical information, availability, and procurement data for: 3120-00-831-3705
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-831-3705

Item Name Code

28215

Assigment Date

01/01/1962 (64 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.

2.470 inches nominal outside diameter, 0.235 inches nominal face width, casehardened casehardening indicator, 0.745 inches nominal bore inside diameter, 45 degrees by 0.031 in.deep chamfer chamfer/radius of inside corner

Product Characteristics

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

Casehardening Indicator: casehardened
Outside Diameter: 2.470 inches nominal
Face Width: 0.235 inches nominal
Bore Inside Diameter: 0.745 inches nominal
Chamfer/Radius Of Inside Corner: 45 degrees by 0.031 in.deep chamfer
Special Features: one end 35 degrees by 0.235 in.deep;other end 55 degrees by 0.188 in.deep
Material: steel
Style Designator: plain

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
026-888	Linear-Rotary Motion Roller
H4197C	Linear-Rotary Motion Roller

FAQs

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

What is the FSCG of the NSN 3120-00-831-3705?

The FSCG of the NSN 3120-00-831-3705 is 3120

Does the NSN 3120-00-831-3705 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-831-3705 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 3120-00-831-3705 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-831-3705 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 3120-00-831-3705 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962