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PartsTable / COMPONENT / 27-004-18-5
27-004-18-5 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include width: 1.000 INCHES NOMINAL IN, diameter: 0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN, material: STEEL OVERALL, duty_type: CONTINUOUS, drive_type: SLOTTED, eyelet_length: 0.328 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-397-1243, 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
27-004-18-5
NSN: 4820-01-397-1243
FSC: 4820
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
width1.000 INCHES NOMINAL IN
diameter0.251 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
materialSTEEL OVERALL
duty_typeCONTINUOUS
drive_typeSLOTTED
coil_quantity1
eyelet_length0.328 INCHES NOMINAL IN
overall_width1.375 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE
overall_height1.188 INCHES NOMINAL IN
overall_length1.500 INCHES NOMINAL IN
special_featuresOVERALL DIM. EXCLUDING JACK SCREWS AND MTG. STUDS 1.050 IN. BY 1.234 IN. BY 1.594 IN. IN
NSN4820-01-397-1243
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 27-004-18-5 · 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 11
ES0000050Interchangeable
interchangeable cross-reference
interchangeable
MEC1129Interchangeable
interchangeable cross-reference
interchangeable
27004Interchangeable
interchangeable cross-reference
interchangeable
27004-01Interchangeable
interchangeable cross-reference
interchangeable
131314Interchangeable
interchangeable cross-reference
interchangeable
610165-002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 27-004-18-5?
27-004-18-5 is a SEAT,VALVE.
What parts can replace 27-004-18-5?
There are 11 known substitutes for 27-004-18-5: ES0000050, MEC1129, 27004 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 27-004-18-5?
27-004-18-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-397-1243. 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