NSN 3110-01-189-4596 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-189-4596. Manufacturer of record part number: 12321112.
Also searched as3110-01-189-4596 ·
3110011894596 ·
NIIN 011894596 ·
01-189-4596 ·
FSC 3110 Bearings, Antifriction, Unmounted · CAGE 60038 · 12321112 · 27680 AND 27620 CLASS 3
Overall Outside Diameter: 4.9375 INCHES NOMINAL IN
Backface Corner Radius: 0.0600 INCHES MINIMUM IN
Cone Corner Radius: 0.1400 INCHES MINIMUM IN
Standout Width: 0.7813 INCHES NOMINAL IN
Identification
NSN: 3110-01-189-4596
NIIN: 011894596
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: 12321112
Manufacturer: The Timken Corporation
General Description
The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-189-4596, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Timken Corporation. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Reference documents
Reference
Meaning
27680 AND 27620 CLASS 3
5/1Secondary reference
The Timken Corporation
No interchangeability data on file.
Other items in FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937
BEARING,ROLLER,NEEDLE
3110-00-001-1937
BEARING,ROLLER,NEEDLE
3110-00-001-1937
BEARING,ROLLER,NEEDLE
3110-00-001-1938
BEARING,BALL,AIRFRAME
3110-00-001-4661
CONE AND ROLLERS,TAPERED ROLLER
3110-00-001-4662
CUP,TAPERED ROLLER BEARING
3110-00-001-4689
BEARING,BALL,ANNULAR
3110-00-001-4722
BEARING,BALL,ANNULAR
Frequently Asked Questions
What is NSN 3110-01-189-4596?
NSN 3110-01-189-4596 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-01-189-4596?
NSN 3110-01-189-4596 has 2 manufacturer part numbers on file: 12321112 (The Timken Corporation), 12321112 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 12321112?
Key specifications for 12321112: Lubrication Material: GREASE; Cup Width: 0.2187 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 1.0000 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 3110-01-189-4596 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.