The Bearing,sleeve, cataloged under National Stock Number 3120-01-178-0232, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Goodrich Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-178-0232 |
| Primary Part Number | 1881B201 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Corner Shape | CHAMFERED INSIDE LEFT CORNER |
| 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 | ROUND LEFT FLANGE BODY CORNER |
| Flange Outside Diameter | 5.4995 INCHES MINIMUM AND 5.5005 INCHES MAXIMUM IN |
| Body Outside Diameter | 4.7534 INCHES MINIMUM AND 4.7551 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 4.4800 INCHES MINIMUM AND 4.4820 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED SPIRAL CIRCULAR |
| Surface Treatment | CADMIUM OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Treatment | CADMIUM RIGHT END SURFACE OF LEFT FLANGE |
| Flange Width | 0.1190 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 630 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 |
|---|---|
| 1881B201 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1881B201 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 3120-01-178-0232 is a Bearing,sleeve, manufactured by Goodrich Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-178-0232 has 1 manufacturer part number on file: 1881B201 (Goodrich Corporation).
Key specifications for 1881B201: Surface Finish: 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: CHAMFERED INSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE RIGHT 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.