The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-992-8634, 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 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3110-00-992-8634 |
| Primary Part Number | 72188-72487 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Cup Width | 1.0000 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 4.8750 INCHES MINIMUM AND 4.8760 INCHES MAXIMUM IN |
| Backface Corner Radius | 0.1250 INCHES NOMINAL IN |
| Cone Corner Radius | 0.0310 INCHES NOMINAL IN |
| Standout Width | 0.4375 INCHES NOMINAL IN |
| Cone Width | 1.2910 INCHES NOMINAL IN |
| Bore Diameter | 1.8750 INCHES MINIMUM AND 1.8755 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 72188-72487 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| D8236-8 | 5/9 Secondary reference New England Trawler Equipment Co |
NSN 3110-00-992-8634 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-992-8634 has 1 manufacturer part number on file: 72188-72487 (The Timken Corporation).
Key specifications for 72188-72487: Cup Width: 1.0000 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 1.4375 INCHES NOMINAL IN; Overall Outside Diameter: 4.8750 INCHES MINIMUM AND 4.8760 INCHES MAXIMUM IN. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.