The Spacer,ring, cataloged under National Stock Number 5365-00-778-9979, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 10 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 | 5365-00-778-9979 |
| Primary Part Number | 1594821 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES RIGHT SIDE |
| Surface Finish | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER |
| Surface Finish | 125.0 MICROINCHES LEFT SIDE |
| Surface Finish | 125.0 MICROINCHES BORE |
| Outside Diameter | 2.630 INCHES NOMINAL IN |
| Overall Thickness | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 2.500 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 1594821 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5365-00-778-9979 is a Spacer,ring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-778-9979 has 1 manufacturer part number on file: 1594821 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1594821: Surface Finish: 125.0 MICROINCHES RIGHT SIDE; Surface Finish: 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER; Surface Finish: 125.0 MICROINCHES LEFT SIDE; Surface Finish: 125.0 MICROINCHES BORE. 10 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.