The Washer,shouldered, cataloged under National Stock Number 5310-01-112-6657, 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 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-112-6657 |
| Primary Part Number | 74A450631-2001 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES TOP |
| Shoulder Height | 0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | QQ-C-530,COND AT FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 2.869 INCHES MINIMUM AND 2.871 INCHES MAXIMUM IN |
| Material Thickness | 0.089 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Shoulder Diameter | 2.252 INCHES MINIMUM AND 2.253 INCHES MAXIMUM IN |
| Material | COPPER OVERALL |
| Hole Diameter | 2.110 INCHES MINIMUM AND 2.112 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 |
|---|---|
| 74A450631-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A450631-2001 | Safran Landing Systems Canada Inc. (CAN) |
| 74A450631-2001 | Nassau Tool Works, Inc (USA) |
| Reference | Meaning |
|---|---|
| 74A450631-2001 | 5/9 Secondary reference Anderson Machine and Engineering Co Inc |
| 74A450631-2001 | 5/2 Secondary reference U.S. Government activity |
| 74A450631-2001 | 5/9 Secondary reference Carden Machine Shop, Inc. |
| 74A450631-2001 | C/1 Advisory reference — outside the item-of-supply concept Israel Aerospace Industries Ltd.shl-Aero Assemblies Division |
| 1958-C-18 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation Div Advanced Structures Landing Systems |
| 10122170 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A450631-2001 | 5/9 Secondary reference Anderson Machine and Tool Works Inc |
| 74A450631-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A450631-2001 | 5/9 Secondary reference Pioneer Machine Products Inc. |
| 74A450631-2001 | C/1 Advisory reference — outside the item-of-supply concept Mccay Tool and Engineering Company Dba Mccay Tool & Engineering Co |
| 74A450631-2001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A450631-2001 | 5/9 Secondary reference Mayday Manufacturing Co. |
NSN 5310-01-112-6657 is a Washer,shouldered, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-112-6657 has 3 manufacturer part numbers on file: 74A450631-2001 (The Boeing Company Div Defense), 74A450631-2001 (Safran Landing Systems Canada Inc.), 74A450631-2001 (Nassau Tool Works, Inc).
Key specifications for 74A450631-2001: Surface Finish: 63.0 MICROINCHES TOP; Shoulder Height: 0.455 INCHES MINIMUM AND 0.465 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Material Document and Classification: QQ-C-530,COND AT FED SPEC ALL MATERIAL RESPONSES OVERALL. 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.