The Ring,retaining, cataloged under National Stock Number 5325-01-083-8356, 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 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-083-8356 |
| Primary Part Number | VH-281 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| FSC Application Data | AN/TPB-1C |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | ROUNDED CORNERS |
| Outside Diameter | 2.920 INCHES MINIMUM AND 2.945 INCHES MAXIMUM IN |
| Major Thickness | 0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| Inside Diameter | 2.762 INCHES MINIMUM AND 2.787 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| VH-281 | Smalley Steel Ring Co. (USA) |
| Reference | Meaning |
|---|---|
| 2010588-005 | 7/9 Vendor item drawing reference Cohu, Inc. Dba Cohu Electronic's Division Div Electronics Division |
| UR-281 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| UR-281-S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-083-8356 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-083-8356 has 1 manufacturer part number on file: VH-281 (Smalley Steel Ring Co.).
Key specifications for VH-281: FSC Application Data: AN/TPB-1C; Usage Design: INTERNAL; Cross-Sectional Shape Style: ROUNDED CORNERS; Outside Diameter: 2.920 INCHES MINIMUM AND 2.945 INCHES MAXIMUM IN. 9 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.