The Washer,keyway, cataloged under National Stock Number 5310-00-607-7098, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. 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 | 5310-00-607-7098 |
| Primary Part Number | 8416838 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Distance From Centerline to Bottom of Internal Keyway | 0.540 INCHES NOMINAL IN |
| Internal Keyway Width | 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Internal Keyway Quantity | 1 |
| Material Thickness | 0.299 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.890 INCHES MINIMUM AND 0.905 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 |
|---|---|
| 8416838 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-00-607-7098 is a Washer,keyway, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-607-7098 has 1 manufacturer part number on file: 8416838 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-296-7587. Verify interchangeability with system specifications before substitution.
Key specifications for 8416838: Distance From Centerline to Bottom of Internal Keyway: 0.540 INCHES NOMINAL IN; Internal Keyway Width: 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN; Outside Diameter: 3.000 INCHES NOMINAL IN; Internal Keyway Quantity: 1. 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.