The Bearing,washer,thrust, cataloged under National Stock Number 3120-00-809-6343, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-809-6343 |
| Primary Part Number | 6777939 |
| Item Name | Bearing,washer,thrust |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Surface Finish | 25.0 MICROINCHES RIGHT SIDE |
| Surface Finish | 25.0 MICROINCHES LEFT SIDE |
| Corner Shape | SQUARE ALL CORNERS |
| Overall Thickness | 0.0610 INCHES NOMINAL IN |
| Hardness Rating | 85.0 ROCKWELL SUPERFICIAL 15-N NOMINAL OVERALL |
| Style Designator | ROUND |
| Diameter | 0.7600 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.5000 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | STEEL COMP 1025 OVERALL |
| Center Hole Shape Style | ROUND |
| 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 |
|---|---|
| 6777939 | The W.w. Williams Company, Llc (USA) |
| 6777939 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6777939 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 5310008096343 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 6777939 | 5/9 Secondary reference U.S. Government activity |
NSN 3120-00-809-6343 is a Bearing,washer,thrust, manufactured by Rolls-Royce Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-809-6343 has 2 manufacturer part numbers on file: 6777939 (The W.w. Williams Company, Llc), 6777939 (Rolls-Royce Corporation).
Key specifications for 6777939: Surface Finish: 25.0 MICROINCHES RIGHT SIDE; Surface Finish: 25.0 MICROINCHES LEFT SIDE; Corner Shape: SQUARE ALL CORNERS; Overall Thickness: 0.0610 INCHES NOMINAL IN. 13 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.