PartsTable
Technical Data Sheet
50158-03 ✓ 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

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, body_style: TEE, bulb_length: 36.000 INCHES NOMINAL IN, bulb_diameter: 1.125 INCHES NOMINAL IN, temp_adjustability: ADJUSTABLE, flow_control_device: PISTON, FREE TYPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-203-8945, 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
50158-03
NSN: 4820-01-203-8945
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
body_styleTEE
bulb_length36.000 INCHES NOMINAL IN
bulb_diameter1.125 INCHES NOMINAL IN
temp_adjustabilityADJUSTABLE
flow_control_devicePISTON, FREE TYPE
thermostatic_elementLIQUID IMMERSION TYPE
capillary_tube_length120.000 INCHES NOMINAL IN
face_to_face_distance8.750 INCHES NOMINAL IN
end_connection_quantity3
first_end_connection_typePLAIN FACE FLANGE
first_end_flange_thickness0.500 INCHES NOMINAL IN
NSN4820-01-203-8945
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 50158-03 · 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
FLOW CONTROL DEVICE: PISTON, FREE TYPE
FIRST END STYLE DESIGNATOR: PLAIN
THIRD END RELATIONSHIP WITH PRECEDING ENDS: IDENTICAL WITH FIRST END
FIRST END FLANGE OUTSIDE DIAMETER: 6.125 INCHES NOMINAL IN
END CONNECTION QUANTITY: 3
FIRST CONNECTION FACE TO CENTERLINE DISTANCE: 4.875 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
CAPILLARY TUBE LENGTH: 120.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEPISTON, FREE TYPE
FIRST END STYLE DESIGNATORPLAIN
THIRD END RELATIONSHIP WITH PRECEDING ENDSIDENTICAL WITH FIRST END
FIRST END FLANGE OUTSIDE DIAMETER6.125 INCHES NOMINAL IN
END CONNECTION QUANTITY3
FIRST CONNECTION FACE TO CENTERLINE DISTANCE4.875 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
CAPILLARY TUBE LENGTH120.000 INCHES NOMINAL IN
BODY STYLETEE
MATERIALCOPPER ALLOY SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
40176Interchangeable
interchangeable cross-reference
interchangeable
AS40176Interchangeable
interchangeable cross-reference
interchangeable
AMS-STD-184Interchangeable
interchangeable cross-reference
interchangeable
FS50104-2012-2Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
68FL3-16X1-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50158-03?
50158-03 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 50158-03?
There are 20 known substitutes for 50158-03: 40176, AS40176, AMS-STD-184 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50158-03?
50158-03 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-203-8945. This indicates validated use in U.S. government and defense supply chains.
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