The Ring,retaining, cataloged under National Stock Number 5325-01-107-1137, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-107-1137 |
| Primary Part Number | 5428121 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 1.147 INCHES NOMINAL IN |
| Major Thickness | 0.035 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN |
| Inside Diameter | 0.997 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Material | STEEL |
| 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 |
|---|---|
| 5428121 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| RR-109BX | 3/9 Design control — primary reference Ramsey Products Corp |
NSN 5325-01-107-1137 is a Ring,retaining, manufactured by Naval Sea Systems Command, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-107-1137 has 1 manufacturer part number on file: 5428121 (Naval Sea Systems Command).
Key specifications for 5428121: Usage Design: INTERNAL; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 1.147 INCHES NOMINAL IN; Major Thickness: 0.035 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN. 8 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.