The Washer,key, cataloged under National Stock Number 5310-01-298-2452, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mpc Products Corporation Dba Woodward Mpc, Inc.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-298-2452 |
| Primary Part Number | 299-4563-020A |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mpc Products Corporation Dba Woodward Mpc, Inc. |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Internal Straight Key Width | 0.055 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.015 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | EI 999-5902-003C MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 0.520 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-766,CLASS 302,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Material Thickness | 0.035 INCHES NOMINAL IN |
| External Straight Key Width | 0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| External Key Quantity | 9 |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 302 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 0.250 INCHES MINIMUM AND 0.270 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 |
|---|---|
| 299-4563-020A PRIMARY | Mpc Products Corporation Dba Woodward Mpc, Inc. (USA) |
NSN 5310-01-298-2452 is a Washer,key, manufactured by Mpc Products Corporation Dba Woodward Mpc, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-298-2452 has 1 manufacturer part number on file: 299-4563-020A (Mpc Products Corporation Dba Woodward Mpc, Inc.).
Key specifications for 299-4563-020A: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Internal Straight Key Width: 0.055 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.015 INCHES NOMINAL IN; Surface Treatment Document and Classification: EI 999-5902-003C MFR REF SINGLE TREATMENT RESPONSE OVERALL. 15 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.