The Washer,key, cataloged under National Stock Number 5310-00-043-2132, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-043-2132 |
| Primary Part Number | 107R2560-1 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Internal Straight Key Width | 0.240 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 1.330 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Material Thickness | 0.093 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Material | STEEL COMP 4340 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 2.830 INCHES NOMINAL 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 |
|---|---|
| 107R2560-1 | Delta Machine and Tool Company, Inc. (USA) |
| 107R2560-1 | Olympic Tool & Machine Corp (USA) |
| 107R2560-1 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 107R2560-1 | 5/9 Secondary reference Creative Precision, Inc. |
| 107R2560-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-043-2132 is a Washer,key, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-043-2132 has 3 manufacturer part numbers on file: 107R2560-1 (Delta Machine and Tool Company, Inc.), 107R2560-1 (Olympic Tool & Machine Corp), 107R2560-1 (The Boeing Company).
Key specifications for 107R2560-1: Internal Straight Key Width: 0.240 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 1.330 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE 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.