The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-443-9917, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-443-9917 |
| Primary Part Number | 40042-702 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Temp Rating | 77.0 FAHRENHEIT DEGF |
| Material | STEEL CORROSION RESISTING BODY |
| Media for Which Designed | STEAM |
| Valve Discharge Flow Rate | 250.0 POUNDS PER HOUR LBS |
| Adjustable Pressure Range | 10.0 TO 30.0 CAMERA MOUNT |
| 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 |
|---|---|
| 40042-702 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-443-9917 is a Valve,relief,pressure and Temper, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-443-9917 has 1 manufacturer part number on file: 40042-702 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
Key specifications for 40042-702: Temp Rating: 77.0 FAHRENHEIT DEGF; Special Features: SIZE 1 INCH; VALVE MAX RATED PRESSURE 100 PSIG; MAX RATED TEMPERATURE 420 DEGREES F; TEMPERATURE RANGE 65-95 DEGREES F; DESIGN PRESSURE 100 PSIG IN; End Item Identification: VALVE ASSY TEMPERATURE REGULATING, PART NUMBER 40042-702 ABOARD 420 FT WAGB COAST GUARD VESSELS FT; Material: STEEL CORROSION RESISTING BODY. 5 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.