The Bearing,washer,thrust, cataloged under National Stock Number 3120-01-331-1621, 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 12 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 | 3120-01-331-1621 |
| Primary Part Number | 5821032 |
| Item Name | Bearing,washer,thrust |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Corner Shape | CHAMFERED SECOND OUTSIDE CORNER |
| Corner Shape | CHAMFERED FIRST OUTSIDE CORNER |
| Corner Shape | CHAMFERED SECOND INSIDE CORNER |
| Corner Shape | CHAMFERED FIRST INSIDE CORNER |
| Overall Thickness | 0.0480 INCHES MINIMUM AND 0.0520 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Material Document and Classification | QQ-C-465M ALLOY 642 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.2803 INCHES MINIMUM AND 0.2809 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.4989 INCHES MINIMUM AND 0.4999 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 642 OVERALL |
| Center Hole Shape Style | ROUND |
| 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 |
|---|---|
| 5821032 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3120-01-331-1621 is a Bearing,washer,thrust, manufactured by Naval Sea Systems Command, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-331-1621 has 1 manufacturer part number on file: 5821032 (Naval Sea Systems Command).
Key specifications for 5821032: Corner Shape: CHAMFERED SECOND OUTSIDE CORNER; Corner Shape: CHAMFERED FIRST OUTSIDE CORNER; Corner Shape: CHAMFERED SECOND INSIDE CORNER; Corner Shape: CHAMFERED FIRST INSIDE CORNER. 12 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.