The Bearing,sleeve, cataloged under National Stock Number 3120-01-322-1663, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-322-1663 |
| Primary Part Number | 5544163-6 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 0.9800 INCHES MINIMUM AND 1.0200 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.7515 INCHES MINIMUM AND 0.7525 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-5687,TYPE 1,GRADE 2 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.6260 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN |
| Flange Width | 0.0935 INCHES MINIMUM AND 0.0985 INCHES MAXIMUM IN |
| Material | OIL LUBRICATING LUBRICATION |
| Material | COPPER ALLOY 841 OR 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 |
|---|---|
| 5544163-6 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5544163-6 | 5/9 Secondary reference General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| 5544163 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3120-01-322-1663 is a Bearing,sleeve, manufactured by Naval Sea Systems Command, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-322-1663 has 1 manufacturer part number on file: 5544163-6 (Naval Sea Systems Command).
Key specifications for 5544163-6: Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 0.9800 INCHES MINIMUM AND 1.0200 INCHES MAXIMUM IN; Body Outside Diameter: 0.7515 INCHES MINIMUM AND 0.7525 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END. 9 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.