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PartsTable / COMPONENT / 50149-09
50149-09 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

REGULATOR,THERMOSTATIC TEMPERATU. Key specifications include mounting_method: FLANGE, thermostat_type: BULB, special_features: FLOW CAPACITY: 145 GPM; 60-90 DEG FAHRENHEITNHA: 4820-01-546-3419, flow_control_device: DISK, capillary_tube_length: 180.000 INCHES NOMINAL IN, end_item_identification: NEW CONSTRUCTION LHD8. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-546-6566, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
50149-09
NSN: 4820-01-546-6566
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
mounting_methodFLANGE
thermostat_typeBULB
special_featuresFLOW CAPACITY: 145 GPM; 60-90 DEG FAHRENHEITNHA: 4820-01-546-3419
flow_control_deviceDISK
capillary_tube_length180.000 INCHES NOMINAL IN
end_item_identificationNEW CONSTRUCTION LHD8
valve_size_for_which_designed2.500 INCHES IN
part_name_assigned_by_controlling_agencyINAVY: THERMO ASSY
NSN4820-01-546-6566
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 50149-09 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
VALVE SIZE FOR WHICH DESIGNED: 2.500 INCHES IN
•
MOUNTING METHOD: FLANGE
•
FLOW CONTROL DEVICE: DISK
•
THERMOSTAT TYPE: BULB
•
CAPILLARY TUBE LENGTH: 180.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
VALVE SIZE FOR WHICH DESIGNED2.500 INCHES IN
MOUNTING METHODFLANGE
SPECIAL FEATURESFLOW CAPACITY: 145 GPM; 60-90 DEG FAHRENHEITNHA: 4820-01-546-3419
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY: THERMO ASSY
FLOW CONTROL DEVICEDISK
THERMOSTAT TYPEBULB
CAPILLARY TUBE LENGTH180.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONNEW CONSTRUCTION LHD8
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
7437048P1Interchangeable
interchangeable cross-reference
interchangeable
L1575CInterchangeable
interchangeable cross-reference
interchangeable
400662Interchangeable
interchangeable cross-reference
interchangeable
40066-202Interchangeable
interchangeable cross-reference
interchangeable
40066-201Interchangeable
interchangeable cross-reference
interchangeable
40066-2 PC.NO. 35Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50149-09?
50149-09 is a REGULATOR,THERMOSTATIC TEMPERATU.
What parts can replace 50149-09?
There are 8 known substitutes for 50149-09: 7437048P1, L1575C, 400662 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50149-09?
50149-09 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-546-6566. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026