BB21770

View detailed technical data, stock status, and sourcing information for: BB21770

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BB21770
Federal Supply Group
Bearings
Federal Supply Classification
3110 Unmounted Antifriction Bearings
National Stock Number
3110-00-183-7505
Item Name Code
00051
Assigment Date
01/01/1963 (63 years ago)

closed end; retaining washer at open end side; od undercut at open end; slot 0.3750 in. w by 0.0700 in. deep in face of bearing at closed end side special features, rigid alignment type, 1.2480 inches minimum and 1.2490 inches maximum overall outside diameter, 0.7590 inches minimum and 0.7610 inches maximum bore diameter, 0.9373 inches minimum and 0.9423 inches maximum overall width

Product Characteristics

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

Overall Width
0.9373 inches minimum and 0.9423 inches maximum
Bore Diameter
0.7590 inches minimum and 0.7610 inches maximum
Overall Outside Diameter
1.2480 inches minimum and 1.2490 inches maximum
Alignment Type
rigid
Special Features
closed end; retaining washer at open end side; od undercut at open end; slot 0.3750 in. w by 0.0700 in. deep in face of bearing at closed end side
Material
steel overall
Style Designator
non-separable, with roller retainer, hardened and ground

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
2520-00-039-6137 No Name Available 01/01/1963
2520-00-374-0182 No Name Available 01/01/1963

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
3M41A Needle Roller Bearing
3N41A Needle Roller Bearing
3N4A Needle Roller Bearing
6Y1452-7 Needle Roller Bearing
BB21770 Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-183-7505?
The FSCG of the NSN 3110-00-183-7505 is 3110
Does the NSN 3110-00-183-7505 have a Schedule B code assigned?
Yes, the Schedule B code is 8482400000
Does NSN 3110-00-183-7505 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 3110-00-183-7505 contain precious materials?
Precious metal content is unknown
Does NSN 3110-00-183-7505 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 3110-00-183-7505 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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