The Bushing,sleeve, cataloged under National Stock Number 3120-01-221-3085, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-221-3085 |
| Primary Part Number | 70400-08107-123 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Corner Shape | SQUARE INSIDE RIGHT 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 |
| Corner Shape | UNDERCUT LEFT FLANGE BODY CORNER |
| Right Internal Flange Width | 0.2500 INCHES NOMINAL IN |
| Flange Outside Diameter | 1.5600 INCHES NOMINAL IN |
| Body Outside Diameter | 1.1885 INCHES MINIMUM AND 1.1895 INCHES MAXIMUM IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END, INTERNAL FLANGE ONE END |
| Material Document and Classification | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.9700 INCHES MINIMUM AND 0.9800 INCHES MAXIMUM IN |
| Right Internal Flange Hole Diameter | 0.7150 INCHES MINIMUM AND 0.7250 INCHES MAXIMUM IN |
| Flange Width | 0.0650 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OR STEEL COMP E4340 OVERALL |
| Keyway Dimension | 0.0650 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM INTERNAL KEYWAY WIDTH IN |
| Keyway Dimension | 0.1050 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN |
| Keyway Dimension | 0.2500 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 70400-08107-123 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3120-01-221-3085 is a Bushing,sleeve, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-221-3085 has 1 manufacturer part number on file: 70400-08107-123 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70400-08107-123: Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER. 20 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.