1881-491

View detailed technical data, stock status, and sourcing information for: 1881-491
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 1881-491 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-187-2704

Item Name Code

13205

Assigment Date

08/21/1984 (41 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.

2.6950 inches minimum and 2.7010 inches maximum body outside diameter, square all corners corner shape, aluminum alloy 7075 intermediate layer material, 2.5055 inches nominal body inside diameter, 0.9960 inches minimum and 0.9980 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: 0.9960 inches minimum and 0.9980 inches maximum
Body Outside Diameter: 2.6950 inches minimum and 2.7010 inches maximum
Body Inside Diameter: 2.5055 inches nominal
Corner Shape: square all corners
Material: aluminum alloy 7075 intermediate layer
Material: plastic polytetrafluoroethylene inner layer
Material: plastic polytetrafluoroethylene outer layer
Surface Treatment: anodize overall
Style Designator: split, plain, no outside flanges

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
1881-491	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-187-2704?

The FSCG of the NSN 3120-01-187-2704 is 3120

Does the NSN 3120-01-187-2704 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-01-187-2704 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 3120-01-187-2704 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-187-2704 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 3120-01-187-2704 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Tue, Aug 21, 1984