The Valve,check, cataloged under National Stock Number 4820-01-319-9983, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-319-9983 |
| Primary Part Number | 1988 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1988 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
NSN 4820-01-319-9983 is a Valve,check, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-319-9983 has 1 cross-referenced part number: 1988 (W.w. Grainger, Inc. Div Government Sales Division).
There are 12 known substitutes for 4820-01-319-9983: 6250-00-151-4213, 3110-00-158-6192, 6810-00-275-8125 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1988: Thread Direction: RIGHT-HAND ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Thread Series Designator: NPT ALL ENDS. 7 total characteristics are documented in the Federal Logistics Information System.