The Valve,check, cataloged under National Stock Number 4820-01-655-9627, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Warren Alloy Valve and Fitting Co Inc. Government technical data includes 16 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 | 4820-01-655-9627 |
| Primary Part Number | 803HF-S 2.00IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Alloy Valve and Fitting Co Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 2.00 INCHES ALL ENDS IN |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM A182GR.F316L ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A182GR.F316L+STL NO.6 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Valve Size | 2.00 INCHES IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 2.00 INCHES ALL ENDS IN |
| Bonnet Attachment Method | BOLTED |
| Face to Face Distance | 5.20 INCHES IN |
| Material | STEEL COMP 316L BODY |
| Material | STEEL COMP 316L FLOW CONTROL DEVICE |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 803HF-S 2.00IN PRIMARY | Warren Alloy Valve and Fitting Co Inc (USA) |
NSN 4820-01-655-9627 is a Valve,check, manufactured by Warren Alloy Valve and Fitting Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-655-9627 has 1 manufacturer part number on file: 803HF-S 2.00IN (Warren Alloy Valve and Fitting Co Inc).
Key specifications for 803HF-S 2.00IN: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 2.00 INCHES ALL ENDS IN; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 16 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.