The Valve,check, cataloged under National Stock Number 4820-01-611-2015, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Regulator Company. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-611-2015 |
| Primary Part Number | 0391007 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| Nominal Length | 21.375 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Valve Size | 2.0 INCHES 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 |
|---|---|
| 0391007 PRIMARY | Watts Regulator Company (USA) |
| Reference | Meaning |
|---|---|
| 0391007 | 5/2 Secondary reference U.S. Government activity |
| 0391007 | 5/9 Secondary reference Etna Distributors, Llc Dba Etna Supply Company |
| 009-LF 2.00IN | 5/9 Secondary reference Watts Regulator Company |
NSN 4820-01-611-2015 is a Valve,check, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-611-2015 has 1 manufacturer part number on file: 0391007 (Watts Regulator Company).
Key specifications for 0391007: Nominal Length: 21.375 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Valve Size: 2.0 INCHES IN. 3 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.