The Ring,retaining, cataloged under National Stock Number 5325-01-045-9994, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Meggitt North Hollywood Inc. 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-045-9994 |
| Primary Part Number | 122390 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Meggitt North Hollywood Inc |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Material Document and Classification | MIL-S-5059, 301 MIL SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.930 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 301 |
| 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 |
|---|---|
| 122390 PRIMARY | Meggitt North Hollywood Inc (USA) |
NSN 5325-01-045-9994 is a Ring,retaining, manufactured by Meggitt North Hollywood Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-045-9994 has 1 manufacturer part number on file: 122390 (Meggitt North Hollywood Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-541-5360, 5935-01-668-6732. Verify interchangeability with system specifications before substitution.
Key specifications for 122390: Usage Design: EXTERNAL; Material Document and Classification: MIL-S-5059, 301 MIL SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 1.930 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN; Casehardening Indicator: NOT CASEHARDENED. 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.