The Spacer,ring, cataloged under National Stock Number 5365-01-185-7798, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company. Government technical data includes 7 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 | 5365-01-185-7798 |
| Primary Part Number | 515059-1 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Overall Thickness | 0.063 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/5,T451 FED SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 0.563 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY 2017 |
| 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 |
|---|---|
| 515059-1 PRIMARY | Raytheon Company (USA) |
NSN 5365-01-185-7798 is a Spacer,ring, manufactured by Raytheon Company, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-185-7798 has 1 manufacturer part number on file: 515059-1 (Raytheon Company).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-283-6689. Verify interchangeability with system specifications before substitution.
Key specifications for 515059-1: Surface Treatment Document and Classification: MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A; Outside Diameter: 0.750 INCHES NOMINAL IN; Overall Thickness: 0.063 INCHES NOMINAL IN; Material Document and Classification: QQ-A-225/5,T451 FED SPEC SINGLE MATERIAL RESPONSE. 7 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.