The Bearing,sleeve, cataloged under National Stock Number 3120-01-182-6684, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 17 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 | 3120-01-182-6684 |
| Primary Part Number | RD35123-1 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec |
| Status | ACTIVE |
| Left Internal Flange Width | 0.2700 INCHES NOMINAL IN |
| Surface Finish | 16.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE |
| Surface Finish | 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Left Internal Flange Hole Diameter | 0.9375 INCHES MINIMUM AND 0.9380 INCHES MAXIMUM IN |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Flange Outside Diameter | 1.9364 INCHES MINIMUM AND 1.9369 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.3070 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END, INTERNAL FLANGE ONE END |
| Material Document and Classification | 5-189,51663 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 1.0400 INCHES NOMINAL IN |
| Flange Width | 0.1710 INCHES MINIMUM AND 0.1740 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 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 |
|---|---|
| RD35123-1 PRIMARY | Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (USA) |
NSN 3120-01-182-6684 is a Bearing,sleeve, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-182-6684 has 1 manufacturer part number on file: RD35123-1 (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).
Key specifications for RD35123-1: Left Internal Flange Width: 0.2700 INCHES NOMINAL IN; Surface Finish: 16.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE; Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Left Internal Flange Hole Diameter: 0.9375 INCHES MINIMUM AND 0.9380 INCHES MAXIMUM IN. 17 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.