NSN 4820-00-929-5540 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-929-5540. Manufacturer of record part number: 71489-00.
General Characteristics Item Description: ID 0.781;MAX OD 4.312;STEM DIA 2.000,LG 10.000;COPPER BULB;120 TO 160 DEG PRESSURE RANGE
2 manufacturer part numbers on file
Manufacturer of record: Lawler Manufacturing Company, Inc.
Identification
NSN: 4820-00-929-5540
NIIN: 009295540
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 71489-00
Manufacturer: Lawler Manufacturing Company, Inc.
General Description
The Thermostat Assembly, cataloged under National Stock Number 4820-00-929-5540, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
4820-00-929-5540
Primary Part Number
71489-00
Item Name
Thermostat Assembly
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Lawler Manufacturing Company, Inc.
Status
ACTIVE
General Characteristics Item Description
ID 0.781;MAX OD 4.312;STEM DIA 2.000,LG 10.000;COPPER BULB;120 TO 160 DEG PRESSURE RANGE
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-00-929-5540?
NSN 4820-00-929-5540 is a Thermostat Assembly, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-929-5540?
NSN 4820-00-929-5540 has 2 manufacturer part numbers on file: 71489-00 (Lawler Manufacturing Company, Inc.), 1489D (Lawler Manufacturing Company, Inc.).
What are the specifications of 71489-00?
Key specifications for 71489-00: General Characteristics Item Description: ID 0.781;MAX OD 4.312;STEM DIA 2.000,LG 10.000;COPPER BULB;120 TO 160 DEG PRESSURE RANGE. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-00-929-5540 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.