The Spacer,ring, cataloged under National Stock Number 5365-01-481-2512, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-481-2512 |
| Primary Part Number | 801-6640811 PC 216 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Diameter | 0.540 INCHES NOMINAL IN |
| Overall Thickness | 0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Inside Diameter | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY 400 |
| 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 |
|---|---|
| 801-6640811 PC 216 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2633-561-01 PC 216 | 5/2 Secondary reference U.S. Government activity |
NSN 5365-01-481-2512 is a Spacer,ring, manufactured by Naval Sea Systems Command, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-481-2512 has 1 manufacturer part number on file: 801-6640811 PC 216 (Naval Sea Systems Command).
Key specifications for 801-6640811 PC 216: Outside Diameter: 0.540 INCHES NOMINAL IN; Overall Thickness: 0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN; Inside Diameter: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: RING INNER SPACER. 4 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.