The Ring,retaining, cataloged under National Stock Number 5325-00-162-3755, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-162-3755 |
| Primary Part Number | WH-375-BA |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | FED-STD-66,AISI FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 3.894 INCHES MINIMUM AND 3.924 INCHES MAXIMUM IN |
| Major Thickness | 0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN |
| Inside Diameter | 3.498 INCHES MINIMUM AND 3.528 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Surface Treatment | OXIDE |
| 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 |
|---|---|
| WH-375-BA PRIMARY | Smalley Steel Ring Co. (USA) |
| Reference | Meaning |
|---|---|
| RR375BX | 5/9 Secondary reference U.S. Government activity |
NSN 5325-00-162-3755 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-162-3755 has 1 manufacturer part number on file: WH-375-BA (Smalley Steel Ring Co.).
Key specifications for WH-375-BA: Usage Design: INTERNAL; Material Document and Classification: FED-STD-66,AISI FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 3.894 INCHES MINIMUM AND 3.924 INCHES MAXIMUM IN. 10 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.