The Ring,retaining, cataloged under National Stock Number 5325-01-207-4579, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-207-4579 |
| Primary Part Number | 5517583-014 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Material Document and Classification | AISI 1074 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 14.92 MILLIMETERS MINIMUM AND 15.18 MILLIMETERS MAXIMUM MM |
| Major Thickness | 0.94 MILLIMETERS MINIMUM AND 1.00 MILLIMETERS MAXIMUM MM |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL |
| Surface Treatment | PHOSPHATE |
| Material | STEEL COMP 1074 |
| 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 |
|---|---|
| 5517583-014 PRIMARY | Naval Sea Systems Command (USA) |
| 5517583-014 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 5517583-014 | Century Fasteners Corp. Dba Century Fasteners Corp (USA) |
| 5517583-014 PRIMARY | Metric and Multistandard Components Corp (USA) |
| Reference | Meaning |
|---|---|
| 2200-11713 | 5/9 Secondary reference Bae Systems Land & Armaments L.p. |
| 5517583-014 | 5/9 Secondary reference Leonardo S.p.a. - Electronics Division - Defence Business Area |
| 5325PL0831620 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5325-01-207-4579 is a Ring,retaining, manufactured by Naval Sea Systems Command, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-207-4579 has 4 manufacturer part numbers on file: 5517583-014 (Naval Sea Systems Command), 5517583-014 (Sps Technologies, Llc Dba PB Fasteners), 5517583-014 (Century Fasteners Corp. Dba Century Fasteners Corp), 5517583-014 (Metric and Multistandard Components Corp).
Key specifications for 5517583-014: Material Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Material Document and Classification: AISI 1074 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.