The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-277-0179, 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 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-277-0179 |
| Primary Part Number | 6386-6320B |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Cup Outside Diameter | 5.3447 INCHES NOMINAL IN |
| Flange Outside Diameter | 5.6527 INCHES NOMINAL IN |
| Cup Width | 1.7500 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, FLANGED CUP, NORMAL ANGLE |
| Backface Corner Radius | 0.1250 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 755 TYPE |
| Cone Corner Radius | 0.1710 INCHES NOMINAL IN |
| Standout Width | 0.6875 INCHES NOMINAL IN |
| Cone Width | 2.2050 INCHES NOMINAL IN |
| Flange Width | 0.3125 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Bore Diameter | 2.6250 INCHES NOMINAL 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 |
|---|---|
| 6386-6320B PRIMARY | The Timken Corporation (USA) |
| 007092E61 PIECE 39 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 007093E66 PIECE 41 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 007093E66 PIECE 41 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 7092E61 PIECE 39 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
| 7093E66 PIECE 41 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| FF-B-187 | 4/1 Identification reference U.S. Government activity |
| 007092E61 PIECE 39 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 7093E66 PIECE41 | 5/9 Secondary reference General Electric Company |
NSN 3110-00-277-0179 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-277-0179 has 3 manufacturer part numbers on file: 6386-6320B (The Timken Corporation), 007092E61 PIECE 39 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 007093E66 PIECE 41 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions).
Key specifications for 6386-6320B: Retainer Fabrication Method: PRESSED; Cup Outside Diameter: 5.3447 INCHES NOMINAL IN; Flange Outside Diameter: 5.6527 INCHES NOMINAL IN; Cup Width: 1.7500 INCHES NOMINAL IN. 14 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.