The Valve,gate, cataloged under National Stock Number 4820-00-649-8726, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-649-8726 |
| Primary Part Number | B11-115-348 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.000 INCHES IN |
| Operating Pressure and Type | 2500.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Criticality Code Justification | ZZZY |
| Connection Type | BUTT WELD PIPE |
| Features Provided | BONNET PACKING |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Material | COBALT ALLOY DISK |
| Material | STEEL CORROSION RESISTING BODY |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | SELECTED AND TESTED FOR NUCLEAR PROPULSION PLANT SYSTEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| B11-115-348 | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 8950B-2-751 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
| B11-115-348 | 3/9 Design control — primary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 4820-00-649-8726 is a Valve,gate, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-649-8726 has 1 manufacturer part number on file: B11-115-348 (Ashcroft Inc Dba Heise).
Key specifications for B11-115-348: Nominal Pipe Size Accommodated: 2.000 INCHES IN; Operating Pressure and Type: 2500.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Stem Type: RISING; Criticality Code Justification: ZZZY. 12 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.
NSN 4820-00-649-8726 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.