The Ring,retaining, cataloged under National Stock Number 5325-01-601-3988, 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 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-601-3988 |
| Primary Part Number | EH-24-S16 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Outside Diameter | 25.73 MILLIMETERS NOMINAL MM |
| Major Thickness | 1.07 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 9390940020 | Safran Helicopter Engines (FRA) |
| EH-24-S16 PRIMARY | Smalley Steel Ring Co. (USA) |
NSN 5325-01-601-3988 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-601-3988 has 2 manufacturer part numbers on file: 9390940020 (Safran Helicopter Engines), EH-24-S16 (Smalley Steel Ring Co.).
Key specifications for EH-24-S16: Outside Diameter: 25.73 MILLIMETERS NOMINAL MM; Major Thickness: 1.07 MILLIMETERS NOMINAL MM; Special Features: AVAILABLE IN CARBON AND STAINLESS STEEL; Part Name Assigned by Controlling Agency: METRIC AEROSPACE RING. 2 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.