The Washer,keyway, cataloged under National Stock Number 5310-00-402-8439, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 10 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-402-8439 |
| Primary Part Number | 3013710 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| External Keyway Width | 0.126 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| External Keyway Quantity | 1 |
| Heat Treatment | NORMALIZED |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.620 INCHES MINIMUM AND 0.623 INCHES MAXIMUM IN |
| Material Thickness | 0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Material | STEEL COMP 8740 OVERALL |
| Hole Diameter | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| External Keyway Length | 0.106 INCHES MINIMUM AND 0.110 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 |
|---|---|
| 3013710 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
NSN 5310-00-402-8439 is a Washer,keyway, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-402-8439 has 1 manufacturer part number on file: 3013710 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 5925-01-173-7286, 4320-01-422-1943. Verify interchangeability with system specifications before substitution.
Key specifications for 3013710: External Keyway Width: 0.126 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN; External Keyway Quantity: 1; Heat Treatment: NORMALIZED; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. 10 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.