The Ring,retaining, cataloged under National Stock Number 5325-00-281-6502, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-281-6502 |
| Primary Part Number | 3227A |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| End Style | VERTEX CENTER OR ABOVE |
| Material Diameter | 0.188 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 2.060 INCHES MINIMUM AND 2.070 INCHES MAXIMUM IN |
| Inside Diameter | 1.685 INCHES MINIMUM AND 1.695 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
|---|---|
| 3227A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 3227A | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5325-00-281-6502 is a Ring,retaining, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-281-6502 has 1 manufacturer part number on file: 3227A (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 3227A: Usage Design: INTERNAL; End Style: VERTEX CENTER OR ABOVE; Material Diameter: 0.188 INCHES NOMINAL 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.