The Ring,retaining, cataloged under National Stock Number 5325-00-352-2172, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-352-2172 |
| Primary Part Number | 3N20 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.344 INCHES NOMINAL IN |
| Major Thickness | 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Inside Diameter | 1.156 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | HOOKED WIRE |
| 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 |
|---|---|
| 3N20 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| 5F2476 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 495962R1 | 5/9 Secondary reference International Harvester Co Agricultural Equipment Div |
| 495962R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 5325-00-352-2172 is a Ring,retaining, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-352-2172 has 2 manufacturer part numbers on file: 3N20 (Meritor Heavy Vehicle Systems, Llc), 5F2476 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3N20: Usage Design: INTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 1.344 INCHES NOMINAL IN; Major Thickness: 0.057 INCHES MINIMUM AND 0.060 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.