The Retainer,turnlock Fastener Eject, cataloged under National Stock Number 5325-01-054-5262, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Aimtron Systems, Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-054-5262 |
| Primary Part Number | 506657 |
| Item Name | Retainer,turnlock Fastener Eject |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Aimtron Systems, Llc |
| Status | ACTIVE |
| Eyelet Height | 0.312 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.344 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE EJECTOR SPRING |
| Surface Treatment | CHROMATE AND ZINC RECEPTACLE |
| Material | STEEL CORROSION RESISTING EJECTOR SPRING |
| Material | STEEL RECEPTACLE |
| 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 |
|---|---|
| 506657 | Aimtron Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| FN04-03 | 7/2 Vendor item drawing reference Eldec Aerospace Corp |
| 10119204 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 81-35-307-55 | 3/2 Design control — primary reference U.S. Government activity |
| 506657 | 5/9 Secondary reference Cardion Inc |
NSN 5325-01-054-5262 is a Retainer,turnlock Fastener Eject, manufactured by Aimtron Systems, Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-054-5262 has 1 manufacturer part number on file: 506657 (Aimtron Systems, Llc).
Key specifications for 506657: Eyelet Height: 0.312 INCHES NOMINAL IN; Largest Outside Diameter: 0.344 INCHES NOMINAL IN; Surface Treatment: PASSIVATE EJECTOR SPRING; Surface Treatment: CHROMATE AND ZINC RECEPTACLE. 6 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.