The Bushing,sleeve, cataloged under National Stock Number 3120-00-684-7765, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Regal Air, Inc.. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-684-7765 |
| Primary Part Number | S6165-20251-000 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Regal Air, Inc. |
| Status | ACTIVE |
| Surface Finish | 100.0 MICROINCHES INTERMEDIATE LAYER |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Flange Outside Diameter | 0.9900 INCHES MINIMUM AND 1.0100 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.8137 INCHES MINIMUM AND 0.8142 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Features Provided | CASEHARDENED |
| Body Inside Diameter | 0.6550 INCHES MINIMUM AND 0.6570 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Flange Width | 0.0610 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN |
| Material | STEEL COMP 410 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 |
|---|---|
| S6165-20251-000 PRIMARY | Regal Air, Inc. (USA) |
| S6165-20251-000 PRIMARY | J.v. Precision Machine Co. Dba Jv Precision Machine Co Div Jv Precision Machine Company (USA) |
| S6165-20251-000 PRIMARY | Rotair Aerospace Corp (USA) |
| S6165-20251-000 PRIMARY | Horst Engineering & Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| S6165-20251 | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| S6165-20251-000 | 7/2 Vendor item drawing reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 3120-00-684-7765 is a Bushing,sleeve, manufactured by Regal Air, Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-684-7765 has 4 manufacturer part numbers on file: S6165-20251-000 (Regal Air, Inc.), S6165-20251-000 (J.v. Precision Machine Co. Dba Jv Precision Machine Co Div Jv Precision Machine Company), S6165-20251-000 (Rotair Aerospace Corp), S6165-20251-000 (Horst Engineering & Manufacturing Co).
Key specifications for S6165-20251-000: Surface Finish: 100.0 MICROINCHES INTERMEDIATE LAYER; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE LEFT FLANGE BODY CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER. 16 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.