PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

638730Bearing Half,sleeve

Am General Llc · NSN 3120-00-737-1173 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-737-1173 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-737-1173. Primary manufacturer part number: 638730.
Features
  • Bearing Half,sleeve — FSC 3120
  • Distance From Centerline of Opening to Left End of Bearing: 0.5625 INCHES MINIMUM AND 0.9062 INCHES MAXIMUM FIRST IN
  • Antirotation/lubrication Type and Quantity: 2 HOLE
  • Corner Shape: CHAMFERED OUTSIDE LEFT CORNER
  • Hole Spacing Angle: 35.5 DEGREES NOMINAL
  • Surface Treatment: TIN OVERALL
  • Body Outside Diameter: 2.4900 INCHES NOMINAL IN
  • Lubricant Accommodation Style: GROOVED CIRCULAR
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Tin Alloy Inner Layer construction
General Description

The Bearing Half,sleeve, cataloged under National Stock Number 3120-00-737-1173, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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
NSN3120-00-737-1173
Primary Part Number638730
Item NameBearing Half,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAm General Llc
StatusCANCELLED
Distance From Centerline of Opening to Left End of Bearing0.5625 INCHES MINIMUM AND 0.9062 INCHES MAXIMUM FIRST IN
Antirotation/lubrication Type and Quantity2 HOLE
Corner ShapeCHAMFERED OUTSIDE LEFT CORNER
Hole Spacing Angle35.5 DEGREES NOMINAL
Surface TreatmentTIN OVERALL
Body Outside Diameter2.4900 INCHES NOMINAL IN
Lubricant Accommodation StyleGROOVED CIRCULAR
Surface Groove Location and Quantity1 INTERNAL
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
MaterialTIN ALLOY INNER LAYER
Hole Diameter0.2510 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM FIRST IN
Style DesignatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
Body Inside Diameter2.3354 INCHES MINIMUM AND 2.3360 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
MaterialSTEEL COMP 1008 OUTER LAYER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3431-00-102-231645V43 INTERCHANGEABLE
Collet Body,welding Torch
Weldcraft Customer Service
5935-00-257-9291QRE12P INTERCHANGEABLE
Connector,receptacle,electrical
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5340-00-262-007411558359 INTERCHANGEABLE
Caster,swivel
Us Army Aviation and Missile Command
4310-00-468-0139 INTERCHANGEABLE
Body,air Strainer
5945-00-502-8765 INTERCHANGEABLE
Solenoid,electrical
5975-01-066-6492TC-723 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5998-01-196-859220502 INTERCHANGEABLE
Printed Circuit Board
Coda Octopus Engineering, Inc.
6210-01-503-579320502 INTERCHANGEABLE
Filter,beacon Light
Cooper Crouse-Hinds Llc
6650-01-648-367320502 INTERCHANGEABLE
Light,monochromatic
Electro-Technic Products Inc.
Cross-Reference Index
Part NumberManufacturer
638730 PRIMARY Am General Llc (USA)
20502 Jpi Transportation Products Inc (USA)
GPW6339A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
7371173 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
638730 Marine Engine Specialties Div of Mesco Tectonics Inc (USA)
GPW6339A Ford Motor Company (USA)
Related Parts
3431-00-102-2316INTERCHANGEABLE
COLLET BODY,WELDING TORCH
45V43
5935-00-257-9291INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
QRE12P
5340-00-262-0074INTERCHANGEABLE
CASTER,SWIVEL
11558359
4310-00-468-0139INTERCHANGEABLE
BODY,AIR STRAINER
5945-00-502-8765INTERCHANGEABLE
SOLENOID,ELECTRICAL
5975-01-066-6492INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
TC-723
5998-01-196-8592INTERCHANGEABLE
PRINTED CIRCUIT BOARD
20502
6210-01-503-5793INTERCHANGEABLE
FILTER,BEACON LIGHT
20502
6650-01-648-3673INTERCHANGEABLE
LIGHT,MONOCHROMATIC
20502

Frequently Asked Questions

What is NSN 3120-00-737-1173?

NSN 3120-00-737-1173 is a Bearing Half,sleeve, manufactured by Am General Llc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-737-1173?

NSN 3120-00-737-1173 has 6 cross-referenced part numbers: 638730 (Am General Llc), 20502 (Jpi Transportation Products Inc), GPW6339A (Ford Motor Co Ford Parts and Service Div Government Part Sales), 7371173 (U S Army Tank Automotive Command Amsta-Im-Mm), 638730 (Marine Engine Specialties Div of Mesco Tectonics Inc) and 1 more.

What NSN replaces 3120-00-737-1173?

There are 9 known substitutes for 3120-00-737-1173: 3431-00-102-2316, 5935-00-257-9291, 5340-00-262-0074 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 638730?

Key specifications for 638730: Overall Length: 1.8125 INCHES NOMINAL IN; Distance From Centerline of Opening to Left End of Bearing: 0.5625 INCHES MINIMUM AND 0.9062 INCHES MAXIMUM FIRST IN; Antirotation/lubrication Type and Quantity: 2 HOLE; Corner Shape: CHAMFERED OUTSIDE LEFT CORNER. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-737-1173 still in active supply?

NSN 3120-00-737-1173 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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