The Valve,stop-Check, cataloged under National Stock Number 4820-01-515-0581, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-515-0581 |
| Primary Part Number | NB01647E-0300 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 3.000 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Media for Which Designed | WATER, SALT SECOND RESPONSE |
| Media for Which Designed | LIQUID FIRST RESPONSE |
| Material | COPPER ALLOY BODY |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | NICKEL ALLOY SEAT |
| 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 |
|---|---|
| NB01647E-0300 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NB01647E-0300 | 3/9 Design control — primary reference Pima Valve, Llc |
NSN 4820-01-515-0581 is a Valve,stop-Check, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-515-0581 has 1 manufacturer part number on file: NB01647E-0300 (Hunt Valve Company, Inc.).
Key specifications for NB01647E-0300: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 3.000 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS; Style Designator: ANGLE FLANGED ENDS. 10 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.