B972

View detailed technical data, stock status, and sourcing information for: B972

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B972
Federal Supply Group
Bearings
Federal Supply Classification
3110 Unmounted Antifriction Bearings
National Stock Number
3110-00-479-3989
Item Name Code
00014
Assigment Date
03/11/1972 (54 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of either a thin layer of conductive material, containing either binders or insulating materials, deposited on an insulated form; or an alloy of metal and ceramic materials, usually fused to an insulated form. Opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the resistor. See also attenuator, fixed and resistor, fixed, composition. Excludes:carbon composition type resistors.

0.0280 inches minimum and 0.0310 inches maximum flange width, 0.1200 inches minimum and 0.1250 inches maximum outer ring width, 0.4120 inches minimum and 0.4320 inches maximum flange outside diameter, 0.1875 inches minimum and 0.1879 inches maximum bore diameter, 0.1356 inches minimum and 0.1406 inches maximum 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
0.1875 inches minimum and 0.1879 inches maximum
Flange Outside Diameter
0.4120 inches minimum and 0.4320 inches maximum
Flange Width
0.0280 inches minimum and 0.0310 inches maximum
Outer Ring Width
0.1200 inches minimum and 0.1250 inches maximum
Inner Ring Width
0.1356 inches minimum and 0.1406 inches maximum
Outer Ring Outside Diameter
0.3747 inches minimum and 0.3750 inches maximum
Surface Finish
ground
Retainer Fabrication Method
pressed
Load Direction
radial
Bore Shape
straight
Internal Clearance
0.0002 inches minimum radial and 0.0012 inches maximum radial
Special Features
inner ring extends on flange side only
Lubrication Material
oil
Lubrication Material Document And Classification
mil-l-6085 mil spec single material response
Material
steel comp 440c ball
Material
steel comp 440c outer ring
Material
steel comp 440c inner ring
Material
steel corrosion resisting retainer
Material Document And Classification
qq-s-763 fed spec single material response ball
Material Document And Classification
qq-s-763 fed spec single material response inner ring
Material Document And Classification
qq-s-763 fed spec single material response outer ring
Style Designator
non-loading groove, non-separable

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
4018589-0701 Annular Ball Bearing
4018589-0701STYLE1 Annular Ball Bearing
B972 Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-479-3989?
The FSCG of the NSN 3110-00-479-3989 is 3110
Does the NSN 3110-00-479-3989 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105028
Does NSN 3110-00-479-3989 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 3110-00-479-3989 contain precious materials?
Precious metal content is unknown
Does NSN 3110-00-479-3989 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 3110-00-479-3989 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Sat, Mar 11, 1972

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