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Technical Data Sheet
PartsTable / COMPONENT / 40737-2
40737-2 ✓ 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 INITIATOR,CARTRIDGE ACTUATED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, thread_length: 4.000 INCHES NOMINAL IN, fastener_length: 10.250 INCHES NOMINAL IN, special_features: CRES TYPE 303 COLD CONDITION A, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-508-4417, 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
40737-2
NSN: 4820-01-508-4417
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
coil_quantity1
thread_length4.000 INCHES NOMINAL IN
fastener_length10.250 INCHES NOMINAL IN
special_featuresCRES TYPE 303 COLD CONDITION A
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
end_item_identification4"PRESSURE REDUCING VALVE, TYPE II, SERIES 250
nominal_thread_diameter1.000 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNF
NSN4820-01-508-4417
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40737-2 · 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 23
18760-2Interchangeable
interchangeable cross-reference
interchangeable
8566532Interchangeable
interchangeable cross-reference
interchangeable
1377-MT09Interchangeable
interchangeable cross-reference
interchangeable
40737-2Interchangeable
interchangeable cross-reference
interchangeable
40737-2 PC NO 11Interchangeable
interchangeable cross-reference
interchangeable
1875-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40737-2?
40737-2 is a INITIATOR,CARTRIDGE ACTUATED.
What parts can replace 40737-2?
There are 23 known substitutes for 40737-2: 18760-2, 8566532, 1377-MT09 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40737-2?
40737-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-508-4417. 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