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PartsTable / COMPONENT / 18437R1
18437R1 ✓ 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 CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include color: BLUE, phase: SINGLE INPUT, shape: CONE, length: 100.0 FEET NOMINAL FT, diameter: 0.625 INCHES NOMINAL IN, end_type: END HOOK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-637-2576, 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
18437R1
NSN: 4820-00-637-2576
FSC: 4820
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
colorBLUE
phaseSINGLE INPUT
shapeCONE
length100.0 FEET NOMINAL FT
diameter0.625 INCHES NOMINAL IN
end_typeEND HOOK
materialCARBIDE
duty_typeCONTINUOUS
body_styleSTRAIGHT SHAPE QUICK CONNECT
cut_length1.625 INCHES NOMINAL IN
shank_typeWELDON
shell_typeSOLID
NSN4820-00-637-2576
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18437R1 · 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 28
Z30Interchangeable
interchangeable cross-reference
interchangeable
HS14198Interchangeable
interchangeable cross-reference
interchangeable
4205Interchangeable
interchangeable cross-reference
interchangeable
128C899H05Interchangeable
interchangeable cross-reference
interchangeable
55448Interchangeable
interchangeable cross-reference
interchangeable
3059Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18437R1?
18437R1 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 18437R1?
There are 28 known substitutes for 18437R1: Z30, HS14198, 4205 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18437R1?
18437R1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-637-2576. 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