The Ring,retaining, cataloged under National Stock Number 5325-01-121-0575, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-121-0575 |
| Primary Part Number | 74A410609-2001 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Usage Design | EXTERNAL OR INTERNAL |
| Material Diameter | 0.091 INCHES NOMINAL IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Inside Diameter | 2.360 INCHES MINIMUM AND 2.370 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | OFFSET |
| Material | STEEL UNS K08500 |
| 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 |
|---|---|
| 74A410609-2001 | Safran Landing Systems Canada Inc. (CAN) |
| 74A410609-2001 | Israel Aerospace Industries Ltd.shl-Aero Assemblies Division (ISR) |
| 74A410609-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A410609-2001 | Circor Aerospace, Inc. Div Circor (USA) |
| 74A410609-2001 | Aeronautical Systems, Incorporated (USA) |
| 74A410609-2001 | Nassau Tool Works, Inc (USA) |
| 74A410609-2001 | Blair Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 10154165 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A410609-2001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A410609-2001 | 5/2 Secondary reference U.S. Government activity |
| 74A410609-2001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A410609-2001 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A410609-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A410609-2001 | 5/9 Secondary reference Heroux-Devtek Inc |
NSN 5325-01-121-0575 is a Ring,retaining, manufactured by The Boeing Company Div Defense, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-121-0575 has 7 manufacturer part numbers on file: 74A410609-2001 (Safran Landing Systems Canada Inc.), 74A410609-2001 (Israel Aerospace Industries Ltd.shl-Aero Assemblies Division), 74A410609-2001 (The Boeing Company Div Defense), 74A410609-2001 (Circor Aerospace, Inc. Div Circor), 74A410609-2001 (Aeronautical Systems, Incorporated) and 2 more.
Key specifications for 74A410609-2001: Usage Design: EXTERNAL OR INTERNAL; Material Diameter: 0.091 INCHES NOMINAL IN; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 9 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.