The Washer,flat, cataloged under National Stock Number 5310-00-616-8283, 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 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 | 5310-00-616-8283 |
| Primary Part Number | 6168283 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Overall Diameter | 4.846 INCHES MINIMUM AND 4.849 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-728 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 903 OR COPPER ALLOY B OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 2.900 INCHES MINIMUM AND 2.905 INCHES MAXIMUM IN |
| Thickness | 0.240 INCHES MINIMUM AND 0.250 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 |
|---|---|
| 6168283 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-00-616-8283 is a Washer,flat, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-616-8283 has 1 manufacturer part number on file: 6168283 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 6168283: Overall Diameter: 4.846 INCHES MINIMUM AND 4.849 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-728 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.