The Washer,key, cataloged under National Stock Number 5310-01-070-9641, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-070-9641 |
| Primary Part Number | 758-042-001 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division |
| Status | ACTIVE |
| Internal Straight Key Width | 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| External Prebent Key Length | 0.050 INCHES NOMINAL IN |
| Overall Distance Including Keys | 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059,COND 1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Material Thickness | 0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| External Prebent Key Width | 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Material | STEEL COMP 304 OVERALL |
| Hole Diameter | 0.375 INCHES MINIMUM AND 0.379 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 |
|---|---|
| 758-042-001 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 758-042-001 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 5310-01-070-9641 is a Washer,key, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-070-9641 has 1 manufacturer part number on file: 758-042-001 (Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division).
Key specifications for 758-042-001: Internal Straight Key Width: 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; External Prebent Key Length: 0.050 INCHES NOMINAL IN. 12 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.