The Bushing,sleeve, cataloged under National Stock Number 3120-01-159-2830, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Cm Manufacturing Inc Dba Cm Manufacturing Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-159-2830 |
| Primary Part Number | 458-56178-1 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Cm Manufacturing Inc Dba Cm Manufacturing Inc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE |
| Surface Finish | 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE |
| Surface Finish | 63.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE |
| Corner Shape | CHAMFERED INSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Flange Outside Diameter | 4.3500 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM IN |
| Body Outside Diameter | 3.8770 INCHES MINIMUM AND 3.8780 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 4590 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4881 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 3.5800 INCHES MINIMUM AND 3.6000 INCHES MAXIMUM IN |
| Flange Width | 0.1230 INCHES MINIMUM AND 0.1240 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 |
|---|---|
| 458-56178-1 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 458-56178-1 | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 458-56178-1 | 3/2 Design control — primary reference U.S. Government activity |
| 458-56178-1 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 3120-01-159-2830 is a Bushing,sleeve, manufactured by Cm Manufacturing Inc Dba Cm Manufacturing Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-159-2830 has 2 manufacturer part numbers on file: 458-56178-1 (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 458-56178-1 (Goodrich Corporation).
Key specifications for 458-56178-1: Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE; Surface Finish: 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY. 19 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.