The Washer,key, cataloged under National Stock Number 5310-01-108-7519, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 11 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-108-7519 |
| Primary Part Number | 74A450660-2001 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Internal Straight Key Width | 0.156 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.500 INCHES NOMINAL IN |
| Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM |
| Style Designator | KEY |
| Material Document and Classification | AMS 5629,COND H ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.750 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN |
| Material Thickness | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP XM-13 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 1.255 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 74A450660-2001 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 74A450660-2001 | Israel Aerospace Industries Ltd.shl-Aero Assemblies Division (ISR) |
| 74A450660-2001 | Nassau Tool Works, Inc (USA) |
| 74A450660-2001 | Safran Landing Systems Canada Inc. (CAN) |
| 74A450660-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10122156 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A450660-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A450660-2001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A450660-2001 | 5/2 Secondary reference U.S. Government activity |
| 74A450660-2001 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450660-2001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A450660-2001 | 5/9 Secondary reference Israel Aircraft Industries Ltd Marketing Directorate |
| 74A450660-2001 | C/1 Advisory reference — outside the item-of-supply concept Circor Aerospace, Inc. Div Circor |
NSN 5310-01-108-7519 is a Washer,key, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-108-7519 has 5 manufacturer part numbers on file: 74A450660-2001 (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 74A450660-2001 (Israel Aerospace Industries Ltd.shl-Aero Assemblies Division), 74A450660-2001 (Nassau Tool Works, Inc), 74A450660-2001 (Safran Landing Systems Canada Inc.), 74A450660-2001 (The Boeing Company Div Defense).
Key specifications for 74A450660-2001: Internal Straight Key Width: 0.156 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.500 INCHES NOMINAL IN; Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM; Style Designator: KEY. 11 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.