The Washer,key, cataloged under National Stock Number 5310-01-247-6850, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div Chelsea Products Division. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-247-6850 |
| Primary Part Number | 378774 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker Hannifin Corporation Div Chelsea Products Division |
| Status | ACTIVE |
| External Straight Key Length | 0.344 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.188 INCHES NOMINAL IN |
| Supplementary Features | ONE EXTERNAL KEY SPACED 90.0 DEG FROM PEENING KEY W/ FLAT TOP SURF. |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Peening Key Length | 0.562 INCHES NOMINAL IN |
| Material Thickness | 0.042 INCHES NOMINAL IN |
| External Straight Key Width | 0.188 INCHES NOMINAL IN |
| Material | STEEL COMP 1018 OVERALL |
| Hole Diameter | 0.390 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 |
|---|---|
| 378774 PRIMARY | Parker Hannifin Corporation Div Chelsea Products Division (USA) |
NSN 5310-01-247-6850 is a Washer,key, manufactured by Parker Hannifin Corporation Div Chelsea Products Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-247-6850 has 1 manufacturer part number on file: 378774 (Parker Hannifin Corporation Div Chelsea Products Division).
Key specifications for 378774: External Straight Key Length: 0.344 INCHES NOMINAL IN; Overall Distance Including Keys: 1.188 INCHES NOMINAL IN; Supplementary Features: ONE EXTERNAL KEY SPACED 90.0 DEG FROM PEENING KEY W/ FLAT TOP SURF.; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.