The Valve,stop-Check, cataloged under National Stock Number 4820-00-736-1956, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-736-1956 |
| Primary Part Number | VAL8 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND SECOND END |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Style Designator | ANGLE |
| Nominal Outside Diameter Tube Accommodated | 1.625 INCHES FIRST END IN |
| Bonnet Type | INSIDE SCREW |
| Nominal Outside Diameter | 2.250 INCHES SECOND END IN |
| Bonnet Attachment Method | INTEGRAL |
| Material | IRON CAST BODY |
| Material | COPPER ALLOY BODY LINING |
| Material | PLASTIC AND STEEL FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.312 INCHES SECOND END 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 |
|---|---|
| VAL8 PRIMARY | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| Reference | Meaning |
|---|---|
| M5019NN | 5/9 Secondary reference Henry Technologies, Inc. |
| M5019 | 5/9 Secondary reference Henry Technologies, Inc. |
| M5041N-N | 5/9 Secondary reference Henry Technologies, Inc. |
NSN 4820-00-736-1956 is a Valve,stop-Check, manufactured by Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-736-1956 has 1 manufacturer part number on file: VAL8 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters).
2 possible matches (shared part number, not a government interchangeability claim): 3655-00-737-0049, 5977-01-059-1634. Verify interchangeability with system specifications before substitution.
Key specifications for VAL8: Flow Control Device: DISK; Flange Shape: ROUND SECOND END; Flange Face Design: PLAIN SECOND END; Connection Style: SOCKET (TUBE) FIRST END. 17 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.