PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-25-4Bearing,sleeve

Trailmobile Inc Sub of the Pullman Co · NSN 3120-00-447-5398 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-447-5398 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-447-5398. Primary manufacturer part number: 3-25-4.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 1.6200 INCHES MINIMUM AND 1.6300 INCHES MAXIMUM IN
  • Body Inside Diameter: 1.4980 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
  • Lubricant Accommodation Style: INDENTED BALL
  • Material: COPPER ALLOY INNER LAYER
  • Hardness Rating: 55.0 ROCKWELL B MINIMUM AND 65.0 ROCKWELL B MAXIMUM OVERALL
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Inner Layer construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-447-5398, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Trailmobile Inc Sub of the Pullman Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-447-5398
Primary Part Number3-25-4
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerTrailmobile Inc Sub of the Pullman Co
StatusACTIVE
Body Outside Diameter1.6200 INCHES MINIMUM AND 1.6300 INCHES MAXIMUM IN
Body Inside Diameter1.4980 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
Lubricant Accommodation StyleINDENTED BALL
MaterialCOPPER ALLOY INNER LAYER
Hardness Rating55.0 ROCKWELL B MINIMUM AND 65.0 ROCKWELL B MAXIMUM OVERALL
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Corner ShapeCHAMFERED OUTSIDE LEFT CORNER
MaterialSTEEL OUTER LAYER
Corner ShapeSQUARE INSIDE RIGHT CORNER
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4310-00-148-44733254 INTERCHANGEABLE
Pilot Assembly,reli
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
3110-00-156-485010098 INTERCHANGEABLE
Bearing,ball,annular
Klauer Manufacturing Company
3940-00-294-29423254 INTERCHANGEABLE
Adapter,hoisting
Allison Transmission Inc Dba Allison Transmission, Inc
5310-00-768-0319 INTERCHANGEABLE
Nut,plain,hexagon
5360-00-840-1943 INTERCHANGEABLE
Spring,helical,extension
2530-00-848-51735457160 INTERCHANGEABLE
Cylinder
General Motors Llc Dba General Motors Llc
5950-01-196-183817252-0021 INTERCHANGEABLE
Reactor
Telephonics Corporation
9330-01-337-29773254 INTERCHANGEABLE
Fitting,cord,pigtai
Heyco Inc Dba Heyco Products
5962-01-364-54293254 INTERCHANGEABLE
Microcircuit,memory
Trig-Tek, Incorporated
6625-01-661-52313254 INTERCHANGEABLE
Reflectometer,optical Time Domai
Jewell Instruments Llc
Cross-Reference Index
Part NumberManufacturer
3-25-4 PRIMARY Trailmobile Inc Sub of the Pullman Co (USA)
63320H PRIMARY Abm Equipment, Llc (USA)
63320H PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
63320H PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
Related Parts
4310-00-148-4473INTERCHANGEABLE
PILOT ASSEMBLY,RELI
3254
3110-00-156-4850INTERCHANGEABLE
BEARING,BALL,ANNULAR
10098
3940-00-294-2942INTERCHANGEABLE
ADAPTER,HOISTING
3254
5310-00-768-0319INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5360-00-840-1943INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2530-00-848-5173INTERCHANGEABLE
CYLINDER
5457160
5950-01-196-1838INTERCHANGEABLE
REACTOR
17252-0021
9330-01-337-2977INTERCHANGEABLE
FITTING,CORD,PIGTAI
3254
5962-01-364-5429INTERCHANGEABLE
MICROCIRCUIT,MEMORY
3254
6625-01-661-5231INTERCHANGEABLE
REFLECTOMETER,OPTICAL TIME DOMAI
3254

Frequently Asked Questions

What is NSN 3120-00-447-5398?

NSN 3120-00-447-5398 is a Bearing,sleeve, manufactured by Trailmobile Inc Sub of the Pullman Co, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-447-5398?

NSN 3120-00-447-5398 has 4 cross-referenced part numbers: 3-25-4 (Trailmobile Inc Sub of the Pullman Co), 63320H (Abm Equipment, Llc), 63320H (Navistar Intl Corp Truck Br Ohio Plant), 63320H (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/).

What NSN replaces 3120-00-447-5398?

There are 10 known substitutes for 3120-00-447-5398: 4310-00-148-4473, 3110-00-156-4850, 3940-00-294-2942 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-25-4?

Key specifications for 3-25-4: Body Outside Diameter: 1.6200 INCHES MINIMUM AND 1.6300 INCHES MAXIMUM IN; Body Inside Diameter: 1.4980 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Overall Length: 1.6150 INCHES MINIMUM AND 1.6350 INCHES MAXIMUM IN; Lubricant Accommodation Style: INDENTED BALL. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com