The Ring,retaining, cataloged under National Stock Number 5325-00-281-6663, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is R. H. Sheppard Co., Inc. Dba Sheppard. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-281-6663 |
| Primary Part Number | 2252530 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | R. H. Sheppard Co., Inc. Dba Sheppard |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.310 INCHES NOMINAL IN |
| Major Thickness | 0.048 INCHES NOMINAL IN |
| Inside Diameter | 1.090 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | WIRE |
| 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 |
|---|---|
| 2252530 PRIMARY | R. H. Sheppard Co., Inc. Dba Sheppard (USA) |
| C110649 PRIMARY | Schwitzer Engine Components a Household Intl Co (USA) |
| 6623A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 6623H | Hoist Liftruck Mfg Inc (USA) |
| 6623A | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 6623A | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5325-00-281-6663 is a Ring,retaining, manufactured by R. H. Sheppard Co., Inc. Dba Sheppard, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-281-6663 has 5 manufacturer part numbers on file: 2252530 (R. H. Sheppard Co., Inc. Dba Sheppard), C110649 (Schwitzer Engine Components a Household Intl Co), 6623A (Brinkley Technology Group Llc Dba Hercules Manufacturing), 6623H (Hoist Liftruck Mfg Inc), 6623A (General Electric Company).
2 possible matches (shared part number, not a government interchangeability claim): 5950-00-814-6908, 6130-01-285-9151. Verify interchangeability with system specifications before substitution.
Key specifications for 2252530: Usage Design: INTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 1.310 INCHES NOMINAL IN; Major Thickness: 0.048 INCHES NOMINAL 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.