The Ring,retaining, cataloged under National Stock Number 5325-01-391-8199, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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 | 5325-01-391-8199 |
| Primary Part Number | 216778 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Material Diameter | 0.085 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.285 INCHES MINIMUM AND 1.299 INCHES MAXIMUM IN |
| Inside Diameter | 1.200 INCHES MINIMUM AND 1.214 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL STEPPED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5325-01-391-8199 is a Ring,retaining, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-391-8199 has 2 manufacturer part numbers on file: 216778 (Eaton Aerospace, Llc Dba Jackson South), 216778 (Eaton Limited).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-483-7490. Verify interchangeability with system specifications before substitution.
Key specifications for 216778: Material Diameter: 0.085 INCHES NOMINAL IN; Cross-Sectional Shape Style: ROUND; Outside Diameter: 1.285 INCHES MINIMUM AND 1.299 INCHES MAXIMUM IN; Inside Diameter: 1.200 INCHES MINIMUM AND 1.214 INCHES MAXIMUM 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.
NSN 5325-01-391-8199 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.