The Spacer,ring, cataloged under National Stock Number 5365-01-381-7403, 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 6 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-381-7403 |
| Primary Part Number | 845-6556605PC13 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Diameter | 9.000 INCHES NOMINAL IN |
| Overall Thickness | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A519 ASSN STD SINGLE MATERIAL RESPONSE |
| Inside Diameter | 8.250 INCHES NOMINAL IN |
| Surface Treatment | NICKEL |
| Material | STEEL COMP 1018 |
| 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 |
|---|---|
| 845-6556605PC13 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5365-01-381-7403 is a Spacer,ring, manufactured by Naval Sea Systems Command, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-381-7403 has 1 manufacturer part number on file: 845-6556605PC13 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-469-5549. Verify interchangeability with system specifications before substitution.
Key specifications for 845-6556605PC13: Outside Diameter: 9.000 INCHES NOMINAL IN; Overall Thickness: 0.375 INCHES NOMINAL IN; Material Document and Classification: ASTM A519 ASSN STD SINGLE MATERIAL RESPONSE; Inside Diameter: 8.250 INCHES NOMINAL IN. 6 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.