The Washer,flat, cataloged under National Stock Number 5310-01-446-9016, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Portland Valve Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Portland Valve Llc (CAGE 53154); Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of (CAGE 0YRW0) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-446-9016 |
| Primary Part Number | 2.00IN 4C2236TT IT9 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 2.00IN 4C2236TT IT9 PRIMARY | Portland Valve Llc (USA) |
| 2.00IN 4C2236TT IT9 | Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of (USA) |
NSN 5310-01-446-9016 is a Washer,flat, manufactured by Portland Valve Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-446-9016 has 2 manufacturer part numbers on file: 2.00IN 4C2236TT IT9 (Portland Valve Llc), 2.00IN 4C2236TT IT9 (Valve Automation and Control of San Diego Dba Valve Automation & Control of San Diego Div Valve Automation and Controls of).
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.