The Valve,automatic Tempering, cataloged under National Stock Number 4820-01-677-5063, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Webstone Company Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-677-5063 |
| Primary Part Number | 74103W |
| Item Name | Valve,automatic Tempering |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Webstone Company Inc |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| First End Thread Series Designator | NPT |
| Temp Rating | -43.0 FAHRENHEIT AND 185.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE GIVE "ADQL" AND "ADQM" ONLY WHEN FLANGED ALL ENDS |
| Face to Face Distance | 5.500 INCHES NOMINAL IN |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| First Connection Face to Centerline Distance | 3.0625 INCHES NOMINAL IN |
| End Connection Quantity | 3 |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Temp Adjustability | ADJUSTABLE |
| First End Nominal Pipe Size Accommodated | 0.75 INCHES IN |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Media for Which Designed | WATER, FRESH |
| First End Nominal Thread Size | 0.75 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 |
|---|---|
| 74103W PRIMARY | Webstone Company Inc (USA) |
| Reference | Meaning |
|---|---|
| 303131381 | 5/9 Secondary reference Home Depot Usa Inc Dba Home Depot |
NSN 4820-01-677-5063 is a Valve,automatic Tempering, manufactured by Webstone Company Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-677-5063 has 1 manufacturer part number on file: 74103W (Webstone Company Inc).
Key specifications for 74103W: Flow Control Device: PISTON, SPRING LOADED; First End Thread Series Designator: NPT; Temp Rating: -43.0 FAHRENHEIT AND 185.0 FAHRENHEIT DEGF; Second End Relationship with First End: IDENTICAL. 18 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.