The Ring,retaining, cataloged under National Stock Number 5325-00-290-5513, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Plc. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Bae Systems Plc (CAGE K1987); Bae Systems (operations) Limited (CAGE U9143) |
| Parameter | Value |
|---|---|
| NSN | 5325-00-290-5513 |
| Primary Part Number | A313918-1 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Bae Systems Plc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| A313918-1 | Bae Systems Plc (GBR) |
| A313918-1 | Bae Systems (operations) Limited (GBR) |
| Reference | Meaning |
|---|---|
| A313918 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
| A313918/1 | C/1 Advisory reference — outside the item-of-supply concept Mico Engineering Corp |
| A313918 | 5/9 Secondary reference Bae Systems Plc |
NSN 5325-00-290-5513 is a Ring,retaining, manufactured by Bae Systems Plc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-290-5513 has 2 manufacturer part numbers on file: A313918-1 (Bae Systems Plc), A313918-1 (Bae Systems (operations) Limited).
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.