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MILV3155 ✓ 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 OR COPPER BULB, body_style: STRAIGHT THRU, bulb_length: 12.750 INCHES NOMINAL IN, bulb_diameter: 3.250 INCHES NOMINAL IN, furnished_items: BRAZING RING AND TAILPIECE AND UNION NUT, temp_adjustability: ADJUSTABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-273-9939, 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
MILV3155
NSN: 4820-00-273-9939
FSC: 4820
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY OR COPPER BULB
body_styleSTRAIGHT THRU
bulb_length12.750 INCHES NOMINAL IN
bulb_diameter3.250 INCHES NOMINAL IN
furnished_itemsBRAZING RING AND TAILPIECE AND UNION NUT
temp_adjustabilityADJUSTABLE
flow_control_devicePOPPET
thermostatic_elementLIQUID IMMERSION TYPE
capillary_tube_length120.000 INCHES NOMINAL IN
end_connection_quantity2
first_end_connection_typeUNTHREADED INTERNAL PIPE
first_end_style_designatorSOCKET W/BRAZING RING
NSN4820-00-273-9939
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MILV3155 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
1 1/2 ING 33 RInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILV3155?
MILV3155 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace MILV3155?
There is 1 known substitute for MILV3155: 1 1/2 ING 33 R. Substitute compatibility should be verified for your specific system.
What is the NSN for MILV3155?
MILV3155 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-273-9939. 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