The Ring,retaining, cataloged under National Stock Number 5325-01-485-5331, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Sealtite Corp Div Sealtite Corporation. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-485-5331 |
| Primary Part Number | 9M188-193 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Sealtite Corp Div Sealtite Corporation |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| End Style | VERTEX BELOW CENTER |
| Material Diameter | 0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 2.032 INCHES MINIMUM AND 2.085 INCHES MAXIMUM IN |
| Inside Diameter | 1.788 INCHES NOMINAL IN |
| Ring Style | SPIRAL |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5325-01-485-5331 is a Ring,retaining, manufactured by Sealtite Corp Div Sealtite Corporation, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-485-5331 has 3 manufacturer part numbers on file: 9M188-183 (Smalley Steel Ring Co.), 9M188-183 (The Boeing Company Div Defense), 9M188-193 (Sealtite Corp Div Sealtite Corporation).
Key specifications for 9M188-193: Usage Design: INTERNAL; End Style: VERTEX BELOW CENTER; Material Diameter: 0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN; Cross-Sectional Shape Style: ROUND. 9 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.