The Ring,retaining, cataloged under National Stock Number 5325-01-476-5692, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Smalley Steel Ring Co.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-476-5692 |
| Primary Part Number | ES-75 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Outside Diameter | 12.0 MILLIMETERS MINIMUM AND 12.2 MILLIMETERS MAXIMUM MM |
| Inside Diameter | 7.9 MILLIMETERS NOMINAL MM |
| Ring Style | SPIRAL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| ES-75 PRIMARY | Smalley Steel Ring Co. (USA) |
| EM50622 ITEM 18 | Mactaggart Scott & Co Ltd (GBR) |
| Reference | Meaning |
|---|---|
| ES-75 | 5/9 Secondary reference Tfc Limited |
NSN 5325-01-476-5692 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-476-5692 has 2 manufacturer part numbers on file: ES-75 (Smalley Steel Ring Co.), EM50622 ITEM 18 (Mactaggart Scott & Co Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5980-01-646-2802. Verify interchangeability with system specifications before substitution.
Key specifications for ES-75: Outside Diameter: 12.0 MILLIMETERS MINIMUM AND 12.2 MILLIMETERS MAXIMUM MM; Inside Diameter: 7.9 MILLIMETERS NOMINAL MM; Ring Style: SPIRAL; Special Features: THK 1.2 MM; GROOVE DIA 72.6 MM; GROOVE DEPTH 1.2 MM; GROOVE WIDTH 1.4 MM MM. 4 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.