452978

View detailed technical data, stock status, and sourcing information for: 452978
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-057-4556

Item Name Code

00014

Assigment Date

01/01/1963 (63 years ago)

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

ground surface finish, 55.00 millimeters nominal bore diameter, 18.00 millimeters nominal outer ring width, 90.00 millimeters nominal overall outside diameter, 22.00 millimeters nominal inner ring width

Product Characteristics

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

Bore Diameter: 55.00 millimeters nominal
Overall Outside Diameter: 90.00 millimeters nominal
Outer Ring Width: 18.00 millimeters nominal
Inner Ring Width: 22.00 millimeters nominal
Surface Finish: ground
Retainer Fabrication Method: machined
Load Direction: radial
Bore Shape: straight
Internal Clearance: 0.0090 inches minimum axial and 0.0110 inches maximum axial and 0.0016 inches minimum radial and 0.0035 inches maximum radial
Standard Tolerance Designation: abec no.5
Special Features: max ball dia variation in any one bearing 0.000020 in.; stabilized for operation at 250 deg f; max surface finish,id of inner ring and od outer ring 16 microinches aa ball pocket 30 microinches aa,retainer land riding surface 50 microinches aa inner and outer raceways 13 microinches aa; puller groove located on inner ring,0.070 in. to 0.090 in. deep,0.070 in. to 0.090 in. w,located 0.070 in. to 0.090 in. from extended end
Material: copper alloy retainer
Material: steel ball
Material: steel inner ring
Material: steel outer ring
Material Document And Classification: -3900,fscm 91547 mfr ref single material response retainer
Material Document And Classification: -4001,fscm 91547 mfr ref single material response ball
Material Document And Classification: -4001,fscm 91547 mfr ref single material response inner ring
Material Document And Classification: -4001,fscm 91547 mfr ref single material response outer ring
Test Data Document: "+6903-91547 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Replaces National Stock Numbers

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

NSN	Name	Date
3110-00-844-3335	No Name Available	08/22/1966

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
1-300-023	Annular Ball Bearing
1-300-023-02	Annular Ball Bearing
1-300-023-03	Annular Ball Bearing
452978	Annular Ball Bearing
9111UK300	Annular Ball Bearing
D3-45981	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-057-4556?

The FSCG of the NSN 3110-00-057-4556 is 3110

Does the NSN 3110-00-057-4556 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-00-057-4556 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 3110-00-057-4556 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-057-4556 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 3110-00-057-4556 was assigned to the Federal Catalog?

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