The Ring,retaining, cataloged under National Stock Number 5325-01-255-4797, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is New Holland N.v.nc.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-255-4797 |
| Primary Part Number | C7NN-4N031-B |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | New Holland N.v.nc. |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | VERTEX CENTER OR ABOVE |
| Material Document and Classification | SAE 1070 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 4.420 INCHES MINIMUM AND 4.450 INCHES MAXIMUM IN |
| Major Thickness | 0.078 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Inside Diameter | 3.940 INCHES MINIMUM AND 3.950 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL COMP 1070 |
| 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 |
|---|---|
| C7NN-4N031-B PRIMARY | New Holland N.v.nc. (USA) |
NSN 5325-01-255-4797 is a Ring,retaining, manufactured by New Holland N.v.nc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-255-4797 has 1 manufacturer part number on file: C7NN-4N031-B (New Holland N.v.nc.).
Key specifications for C7NN-4N031-B: Usage Design: EXTERNAL; End Style: VERTEX CENTER OR ABOVE; Material Document and Classification: SAE 1070 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 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.