The Ring,retaining, cataloged under National Stock Number 5325-01-645-3336, 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 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-645-3336 |
| Primary Part Number | WH-393 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| 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 |
|---|---|
| WH-393 PRIMARY | Smalley Steel Ring Co. (USA) |
| Reference | Meaning |
|---|---|
| F160402 ITEM 13 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| F160320 ITEM 14 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| F160328 ITEM 12 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| F160316 ITEM 16 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
NSN 5325-01-645-3336 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-645-3336 has 1 manufacturer part number on file: WH-393 (Smalley Steel Ring Co.).
Key specifications for WH-393: Usage Design: EXTERNAL; Special Features: 0.061 INCHES THICK IN; Part Name Assigned by Controlling Agency: RETAINING RING; End Item Identification: SHEAVE ASSEMBLY. 1 specification is 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.