The Washer,keyway, cataloged under National Stock Number 5310-00-740-1024, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Gorman-Rupp Company Div Gorman-Rupp. Government technical data includes 7 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-740-1024 |
| Primary Part Number | A4454 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Gorman-Rupp Company Div Gorman-Rupp |
| Status | ACTIVE |
| External Keyway Width | 0.062 INCHES NOMINAL IN |
| External Keyway Quantity | 1 |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Material Thickness | 0.047 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.312 INCHES NOMINAL IN |
| External Keyway Length | 0.062 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 |
|---|---|
| A4454 PRIMARY | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
NSN 5310-00-740-1024 is a Washer,keyway, manufactured by The Gorman-Rupp Company Div Gorman-Rupp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-740-1024 has 1 manufacturer part number on file: A4454 (The Gorman-Rupp Company Div Gorman-Rupp).
1 possible match (shared part number, not a government interchangeability claim): 7010-01-682-0714. Verify interchangeability with system specifications before substitution.
Key specifications for A4454: External Keyway Width: 0.062 INCHES NOMINAL IN; External Keyway Quantity: 1; Outside Diameter: 0.625 INCHES NOMINAL IN; Material Thickness: 0.047 INCHES NOMINAL IN. 7 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.