The Washer,keyway, cataloged under National Stock Number 5310-01-070-1723, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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 | 5310-01-070-1723 |
| Primary Part Number | 709-4684909 ITEM 9 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Distance From Centerline to Bottom of Internal Keyway | 0.578 INCHES NOMINAL IN |
| Internal Keyway Width | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | 150 (DELRIN),FSCM 27280 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Internal Keyway Quantity | 1 |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Material | PLASTIC ACETAL OVERALL |
| Hole Diameter | 0.906 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 |
|---|---|
| 709-4684909 ITEM 9 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-070-1723 is a Washer,keyway, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-070-1723 has 1 manufacturer part number on file: 709-4684909 ITEM 9 (Naval Sea Systems Command).
Key specifications for 709-4684909 ITEM 9: Distance From Centerline to Bottom of Internal Keyway: 0.578 INCHES NOMINAL IN; Internal Keyway Width: 0.250 INCHES NOMINAL IN; Material Document and Classification: 150 (DELRIN),FSCM 27280 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.000 INCHES NOMINAL IN. 8 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.