624-1257-001

View detailed technical data, stock status, and sourcing information for: 624-1257-001
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-042-4502

Item Name Code

13205

Assigment Date

06/10/1977 (49 years ago)

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

0.8747 inches minimum and 0.8757 inches maximum body outside diameter, 0.5610 inches minimum and 0.5630 inches maximum overall length, 1.0000 inches nominal flange outside diameter, 0.0910 inches minimum and 0.0970 inches maximum flange width, 0.7807 inches minimum and 0.7817 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: 0.5610 inches minimum and 0.5630 inches maximum
Body Outside Diameter: 0.8747 inches minimum and 0.8757 inches maximum
Body Inside Diameter: 0.7807 inches minimum and 0.7817 inches maximum
Flange Outside Diameter: 1.0000 inches nominal
Flange Width: 0.0910 inches minimum and 0.0970 inches maximum
Corner Shape: square left flange body corner
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
Material: copper alloy overall
Material: lubricant lubrication
Material Document And Classification: mil-b-5687,ty 1,comp b mil spec single material response overall
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
624-1257-001	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-042-4502?

The FSCG of the NSN 3120-01-042-4502 is 3120

Does the NSN 3120-01-042-4502 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-01-042-4502 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 3120-01-042-4502 contain precious materials?

Precious metal content is unknown

Does NSN 3120-01-042-4502 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 3120-01-042-4502 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Fri, Jun 10, 1977