The Ring,retaining, cataloged under National Stock Number 5325-00-257-0484, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-257-0484 |
| Primary Part Number | 1229Z1301 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Usage Design | EXTERNAL AND INTERNAL |
| End Style | VERTEX OUTSIDE PERIPHERY |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.453 INCHES NOMINAL IN |
| Major Thickness | 0.187 INCHES NOMINAL IN |
| Inside Diameter | 1.203 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
NSN 5325-00-257-0484 is a Ring,retaining, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-257-0484 has 2 manufacturer part numbers on file: 1229Z1301 (Meritor Industrial Products, Llc), 1229Z1301 (Meritor Heavy Vehicle Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5325-00-715-7391. Verify interchangeability with system specifications before substitution.
Key specifications for 1229Z1301: Usage Design: EXTERNAL AND INTERNAL; End Style: VERTEX OUTSIDE PERIPHERY; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 1.453 INCHES NOMINAL 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.