PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J4491Bearing,sleeve

Kysor/westran Corp Austin Trailer Div · NSN 3120-00-678-8274 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-678-8274 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-678-8274. Primary manufacturer part number: J4491.
Features
  • Bearing,sleeve — FSC 3120
  • Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN
  • Body Outside Diameter: 2.0300 INCHES MINIMUM AND 2.0320 INCHES MAXIMUM IN
  • Material: COPPER ALLOY 932 OVERALL
  • 2 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 932 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-678-8274, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Kysor/westran Corp Austin Trailer Div. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-678-8274
Primary Part NumberJ4491
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerKysor/westran Corp Austin Trailer Div
StatusACTIVE
Material Document and ClassificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN
Body Outside Diameter2.0300 INCHES MINIMUM AND 2.0320 INCHES MAXIMUM IN
MaterialCOPPER ALLOY 932 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-01-104-3442 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
J4491 Kysor/westran Corp Austin Trailer Div (USA)
8379981 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5950-01-104-3442INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 3120-00-678-8274?

NSN 3120-00-678-8274 is a Bearing,sleeve, manufactured by Kysor/westran Corp Austin Trailer Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-678-8274?

NSN 3120-00-678-8274 has 2 cross-referenced part numbers: J4491 (Kysor/westran Corp Austin Trailer Div), 8379981 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 3120-00-678-8274?

There is 1 known substitute for 3120-00-678-8274: 5950-01-104-3442. Verify interchangeability with system specifications before substitution.

What are the specifications of J4491?

Key specifications for J4491: Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Corner Shape: SQUARE ALL CORNERS; Body Inside Diameter: 1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

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