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Sleeve Bearing

NSN: 3120-00-048-7668 | Model: 232291

A tubular shaped item with or without flang (s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. it must have a visible or detectable means of lubrication or be self-lubricated. the over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. see also bushing, sleeve; spacer, sleeve; and washer (as modified) . excludes pin, hollow.

NSN Properties and Flags
NATO Stock Number
Hole Diameter
0.0990 inches first
Slot Width
0.1350 inches first
Slot Length
0.6280 inches first and 0.6300 inches first
Overall Length
Between 2.4600 inches and 2.4800 inches
Body Outside Diameter
Between 2.9387 inches and 2.9392 inches
Body Inside Diameter
Between 2.8129 inches and 2.8130 inches
Flange Outside Diameter
Between 3.3650 inches and 3.3850 inches
Flange Width
Between 0.1535 inches and 0.1545 inches
Corner Shape
Square outside right corner
Antirotation/lubrication Type And Quantity
8 hole and 2 slot
Material Specification
Ams 4815 assn standard single material response outer layer
Precious Material And Location
Internal surface silver
Precious Material
Style Designator
Solid, external flange one end

Inventory Check

The last inventory check on this NSN was done on 10/16/2021. Due to rapid changes in inventory this may not be the current stock qty.

  • New: 1
  • New Surplus: 1

Pricing and Availability

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NSN 3120-00-048-7668 Datasheet

Supply Class (FSC):
Unmounted Plain Bearings
Cross Reference:
  • 232291
Cage Codes:
  • Pratt & Whitney Canada Cie Divpratt (CAGE 00198)
Schedule B & Trade:
  • Schedule B: 8482997090 (NAICS 332991)

    Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi

  • SITC: 74699

    Parts of ball and roller bearings, n.E.S.

  • End Use: 21180

    Industrial machines, other


N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


S - Item contains silver.


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 3120-00-048-7668 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
What is the NIIN of NSN 3120-00-048-7668?
000487668 or 00-048-7668
Does NSN 3120-00-048-7668 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3120-00-048-7668?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963