HA521-1

View detailed technical data, stock status, and sourcing information for: HA521-1
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-517-8473

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

0.4950 inches minimum and 0.5050 inches maximum overall length, 0.3740 inches minimum and 0.3750 inches maximum body inside diameter, 0.5020 inches minimum and 0.5030 inches maximum body outside diameter, square all corners corner shape, copper alloy overall material

Product Characteristics

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

Overall Length: 0.4950 inches minimum and 0.5050 inches maximum
Body Outside Diameter: 0.5020 inches minimum and 0.5030 inches maximum
Body Inside Diameter: 0.3740 inches minimum and 0.3750 inches maximum
Corner Shape: square all corners
Material: copper alloy overall
Material: oil lubricating lubrication
Material Document And Classification: mil-b-5697,ty 1,comp a mil spec single material response overall
Style Designator: solid, plain, no outside flanges

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3120-00-287-6260	No Name Available	08/07/1967
3120-00-367-4775	No Name Available	01/01/1963
3120-00-661-6469	No Name Available	08/07/1967
4920-00-871-1235	No Name Available	09/17/1969
3120-00-911-6375	No Name Available	07/25/1969
5365-01-188-9496	No Name Available	03/01/1991
2030-01-270-8208	No Name Available	06/01/1991

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
3120PL0709255	Sleeve Bearing
5A74	Sleeve Bearing
8-076-801	Sleeve Bearing
8-076-801-00	Sleeve Bearing
A521-1	Sleeve Bearing
AA-521-1	Sleeve Bearing
AA521-1	Sleeve Bearing
C1037-32A	Sleeve Bearing
HA521-1	Sleeve Bearing
N-322-D PIECE 55	Sleeve Bearing
N1037A59	Sleeve Bearing
N322A55	Sleeve Bearing
ZMD98XX-PDR030	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-517-8473?

The FSCG of the NSN 3120-00-517-8473 is 3120

Does the NSN 3120-00-517-8473 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-517-8473 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 3120-00-517-8473 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-517-8473 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 3120-00-517-8473 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963