TRB-3446

View detailed technical data, stock status, and sourcing information for: TRB-3446
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-021-3801

Item Name Code

00030

Assigment Date

05/15/1976 (50 years ago)

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.

steel overall material, 0.0600 inches minimum and 0.0630 inches maximum overall width, 2.8750 inches nominal outside diameter, 2.1250 inches nominal bore diameter, flat race surface style designator

Product Characteristics

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

Outside Diameter: 2.8750 inches nominal
Overall Width: 0.0600 inches minimum and 0.0630 inches maximum
Bore Diameter: 2.1250 inches nominal
Material: steel overall
Style Designator: flat race surface

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
D1230PC36	Bearing Seat
TRB-3446	Bearing Seat
TRB-3446-AID	Bearing Seat
TRB3446	Bearing Seat

FAQs

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

What is the FSCG of the NSN 3110-01-021-3801?

The FSCG of the NSN 3110-01-021-3801 is 3110

Does the NSN 3110-01-021-3801 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3110-01-021-3801 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 3110-01-021-3801 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-021-3801 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 3110-01-021-3801 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, May 15, 1976