The Ring,retaining, cataloged under National Stock Number 5325-01-007-4978, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Metric and Multistandard Components Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-007-4978 |
| Primary Part Number | DIN471 6 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Metric and Multistandard Components Corp |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.7 MILLIMETERS NOMINAL MM |
| Inside Diameter | 5.6 MILLIMETERS NOMINAL MM |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | PHOSPHATE |
| 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 |
|---|---|
| DIN471 6 PRIMARY | Metric and Multistandard Components Corp (USA) |
| Reference | Meaning |
|---|---|
| DIN 471 SIZE M6 | 5/9 Secondary reference Metric and Multistandard Components Corp |
| 7560200-2 | 5/9 Secondary reference L3harris Technologies, Inc Div Space & Airborne Systems |
NSN 5325-01-007-4978 is a Ring,retaining, manufactured by Metric and Multistandard Components Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-007-4978 has 1 manufacturer part number on file: DIN471 6 (Metric and Multistandard Components Corp).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-557-2574. Verify interchangeability with system specifications before substitution.
Key specifications for DIN471 6: Usage Design: EXTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.7 MILLIMETERS NOMINAL MM; Inside Diameter: 5.6 MILLIMETERS NOMINAL MM. 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.