The Bearing,sleeve, cataloged under National Stock Number 3120-01-124-5261, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-124-5261 |
| Primary Part Number | 176C1549 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OVERALL |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 0.5595 INCHES MINIMUM AND 0.5605 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.3136 INCHES MINIMUM AND 0.3154 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED CIRCULAR AND GROOVED FIGURE 8 |
| 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 |
|---|---|
| 176C1549 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 10107800 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 3120-01-124-5261 is a Bearing,sleeve, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-124-5261 has 1 manufacturer part number on file: 176C1549 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 176C1549: Surface Finish: 32.0 MICROINCHES OVERALL; Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.5595 INCHES MINIMUM AND 0.5605 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 8 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.