The Thermostat Assembly,valve, cataloged under National Stock Number 4820-01-052-0363, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 1 specification, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-052-0363 |
| Primary Part Number | 71870-02 |
| Item Name | Thermostat Assembly,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lawler Manufacturing Company, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CONSIST OF,THERMOSTAT ASSY 1EA; THERMOSTAT O-RING 1 EA; SHUT OFF DISK 1EA; RETAINING RING 1 EA; DISK RING 1 EA |
| 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 |
|---|---|
| 71870-02 PRIMARY | Lawler Manufacturing Company, Inc. (USA) |
NSN 4820-01-052-0363 is a Thermostat Assembly,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-052-0363 has 1 manufacturer part number on file: 71870-02 (Lawler Manufacturing Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-343-6622. Verify interchangeability with system specifications before substitution.
Key specifications for 71870-02: General Characteristics Item Description: CONSIST OF,THERMOSTAT ASSY 1EA; THERMOSTAT O-RING 1 EA; SHUT OFF DISK 1EA; RETAINING RING 1 EA; DISK RING 1 EA. 1 specification is 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.