The Ring,retaining, cataloged under National Stock Number 5325-01-549-7326, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Aks Industries Inc Dba Alaska Structures Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-549-7326 |
| Primary Part Number | AK-ECU-3/8RING5T |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Aks Industries Inc Dba Alaska Structures Inc |
| Status | ACTIVE |
| Material Diameter | 0.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | ROUND |
| Material | ALUMINUM |
| 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 |
|---|---|
| AK-ECU-3/8RING5T PRIMARY | Aks Industries Inc Dba Alaska Structures Inc (USA) |
| 400-2901-03 | G3 Systems Limited (GBR) |
| Reference | Meaning |
|---|---|
| 400-2901-03 | 5/9 Secondary reference G3 Systems Ltd |
NSN 5325-01-549-7326 is a Ring,retaining, manufactured by Aks Industries Inc Dba Alaska Structures Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-549-7326 has 2 manufacturer part numbers on file: AK-ECU-3/8RING5T (Aks Industries Inc Dba Alaska Structures Inc), 400-2901-03 (G3 Systems Limited).
Key specifications for AK-ECU-3/8RING5T: Material Diameter: 0.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: ROUND; Special Features: DUCT RING; ISIDE DIA 12.250 IN IN; Material: ALUMINUM. 3 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.