PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

645161Bearing,sleeve

Am General Llc · NSN 3120-00-662-8748 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-662-8748 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-662-8748. Primary manufacturer part number: 645161.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
  • Lubricant Accommodation Style: GROOVED CIRCULAR
  • Body Outside Diameter: 2.4830 INCHES MINIMUM AND 2.4955 INCHES MAXIMUM IN
  • Body Inside Diameter: 2.3290 INCHES MINIMUM AND 2.3390 INCHES MAXIMUM IN
  • Material: TIN ALLOY INNER LAYER
  • Surface Groove Location and Quantity: 1 INTERNAL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Tin Alloy Inner Layer construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-662-8748, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Am General Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-662-8748
Primary Part Number645161
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAm General Llc
StatusCANCELLED
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSEGMENTED, PLAIN, NO OUTSIDE FLANGES
Lubricant Accommodation StyleGROOVED CIRCULAR
Body Outside Diameter2.4830 INCHES MINIMUM AND 2.4955 INCHES MAXIMUM IN
Body Inside Diameter2.3290 INCHES MINIMUM AND 2.3390 INCHES MAXIMUM IN
MaterialTIN ALLOY INNER LAYER
Surface Groove Location and Quantity1 INTERNAL
MaterialSTEEL COMP 1010 OUTER LAYER
Antirotation/lubrication Type and Quantity2 HOLE AND 1 SLOT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-060-2548S12 INTERCHANGEABLE
Washer,flat
Dill Air Controls Products Llc Dba Dill Air Controls Products Llc
5331-00-084-42682987 INTERCHANGEABLE
O-Ring
Lawler Manufacturing Company, Inc.
2040-00-385-8846 INTERCHANGEABLE
Fitting,exhaust
5999-00-406-501964516-1 INTERCHANGEABLE
Contact,electrical
L3harris Technologies, Inc.
5620-01-062-6292GRZ002987 INTERCHANGEABLE
Glass,gage
Parts Town, Llc
4320-01-165-0793 INTERCHANGEABLE
Pump,centrifugal
5340-01-326-56232-36 INTERCHANGEABLE
Bracket,angle
Vemco Drafting Products Corporation
6540-01-552-969910A-060 INTERCHANGEABLE
Carry Case,ophthalmoscope
Coopersurgical Inc Dba Coopersurgical Products
2540-01-608-65772987 INTERCHANGEABLE
Bracket,vehicular Seat
Bmi Defense Systems, Inc
Cross-Reference Index
Part NumberManufacturer
645161 Am General Llc (USA)
2987 Mcquay-Norris Inc Oem Div an Skf Industries Co
9957SB Federal-Mogul Corp Powertrain Products Div (USA)
S5579 Dana Corp Engine Products Div (USA)
7372565 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
645161 General Motors Corp (USA)
MB884M Jpi Transportation Products Inc (USA)
FD59 Johnson Bronze Co (USA)
Related Parts
5310-00-060-2548INTERCHANGEABLE
WASHER,FLAT
S12
5331-00-084-4268INTERCHANGEABLE
O-RING
2987
2040-00-385-8846INTERCHANGEABLE
FITTING,EXHAUST
5999-00-406-5019INTERCHANGEABLE
CONTACT,ELECTRICAL
64516-1
5620-01-062-6292INTERCHANGEABLE
GLASS,GAGE
GRZ002987
4320-01-165-0793INTERCHANGEABLE
PUMP,CENTRIFUGAL
5340-01-326-5623INTERCHANGEABLE
BRACKET,ANGLE
2-36
6540-01-552-9699INTERCHANGEABLE
CARRY CASE,OPHTHALMOSCOPE
10A-060
2540-01-608-6577INTERCHANGEABLE
BRACKET,VEHICULAR SEAT
2987

Frequently Asked Questions

What is NSN 3120-00-662-8748?

NSN 3120-00-662-8748 is a Bearing,sleeve, manufactured by Am General Llc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-662-8748?

NSN 3120-00-662-8748 has 8 cross-referenced part numbers: 645161 (Am General Llc), 2987 (Mcquay-Norris Inc Oem Div an Skf Industries Co), 9957SB (Federal-Mogul Corp Powertrain Products Div), S5579 (Dana Corp Engine Products Div), 7372565 (U S Army Tank Automotive Command Amsta-Im-Mm) and 3 more.

What NSN replaces 3120-00-662-8748?

There are 9 known substitutes for 3120-00-662-8748: 5310-00-060-2548, 5331-00-084-4268, 2040-00-385-8846 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 645161?

Key specifications for 645161: Corner Shape: SQUARE ALL CORNERS; Style Designator: SEGMENTED, PLAIN, NO OUTSIDE FLANGES; Lubricant Accommodation Style: GROOVED CIRCULAR; Body Outside Diameter: 2.4830 INCHES MINIMUM AND 2.4955 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-662-8748 still in active supply?

NSN 3120-00-662-8748 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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