The Ring,retaining, cataloged under National Stock Number 5325-01-388-5028, 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 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-388-5028 |
| Primary Part Number | WHT-125 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 1.330 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN |
| Major Thickness | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Inside Diameter | 1.144 INCHES MINIMUM AND 1.159 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| WHT-125 PRIMARY | Smalley Steel Ring Co. (USA) |
| 2498-00-313PN2,10.00IN STYB TY3 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 2498-00-300PN2, 10 IN, TY 3 MATL | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 2498-00-313PN2,10.00INSTYBTY3 | C/1 Advisory reference — outside the item-of-supply concept Circor Intl Inc |
| 2498-00-300PN2, 10 IN, TY 3 MATL | 5/9 Secondary reference Circor Intl Inc |
| 2498-00-313-2,SZ-8/10,TY-III | 5/9 Secondary reference Circor Intl Inc |
| 2498-00-313,SZ-8/10,TY-III | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 5325-01-388-5028 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-388-5028 has 3 manufacturer part numbers on file: WHT-125 (Smalley Steel Ring Co.), 2498-00-313PN2,10.00IN STYB TY3 (Leslie Controls, Inc. Dba Leslie Controls Inc), 2498-00-300PN2, 10 IN, TY 3 MATL (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for WHT-125: Usage Design: INTERNAL; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 1.330 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN; Major Thickness: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM 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.