The Ring,retaining, cataloged under National Stock Number 5325-01-108-2887, 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 10 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-108-2887 |
| Primary Part Number | 74A450845-2001 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | VERTEX OUTSIDE PERIPHERY |
| Material Diameter | 0.192 INCHES NOMINAL IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 5.404 INCHES NOMINAL IN |
| Inside Diameter | 5.020 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
|---|---|
| 74A450845-2001 | Heroux-Devtek Inc (CAN) |
| 74A450845-2001 | Circor Aerospace, Inc. Div Circor (USA) |
| 74A450845-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A450845-2001 | Harlow Aerostructures, Llc (USA) |
| 74A450845-2001 | Safran Landing Systems Canada Inc. (CAN) |
| Reference | Meaning |
|---|---|
| 74A450845-2001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 10154155 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A450845-2001 | C/1 Advisory reference — outside the item-of-supply concept Israel Aerospace Industries Ltd.shl-Aero Assemblies Division |
| 74A450845-2001 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450845-2001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
NSN 5325-01-108-2887 is a Ring,retaining, manufactured by The Boeing Company Div Defense, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-108-2887 has 5 manufacturer part numbers on file: 74A450845-2001 (Heroux-Devtek Inc), 74A450845-2001 (Circor Aerospace, Inc. Div Circor), 74A450845-2001 (The Boeing Company Div Defense), 74A450845-2001 (Harlow Aerostructures, Llc), 74A450845-2001 (Safran Landing Systems Canada Inc.).
Key specifications for 74A450845-2001: Usage Design: EXTERNAL; End Style: VERTEX OUTSIDE PERIPHERY; Material Diameter: 0.192 INCHES NOMINAL IN; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE. 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.