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PartsTable / COMPONENT / 14540 PC18
14540 PC18 ✓ 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 material: RUBBER BUNA N OVERALL, overall_height: 0.098 INCHES NOMINAL IN, style_designator: PLAIN, body_inside_diameter: 0.137 INCHES NOMINAL IN, body_outside_diameter: 0.430 INCHES NOMINAL IN, seating_surface_shape: FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-049-8710, 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
14540 PC18
NSN: 4820-01-049-8710
FSC: 4820
CAGE: 71342 — IMI CASH VALVE INC (USA)
SPECIFICATIONS
materialRUBBER BUNA N OVERALL
overall_height0.098 INCHES NOMINAL IN
style_designatorPLAIN
body_inside_diameter0.137 INCHES NOMINAL IN
body_outside_diameter0.430 INCHES NOMINAL IN
seating_surface_shapeFLAT
NSN4820-01-049-8710
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 14540 PC18 · 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
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL: RUBBER BUNA N OVERALL
•
SEATING SURFACE SHAPE: FLAT
•
BODY OUTSIDE DIAMETER: 0.430 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.137 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.098 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
MATERIALRUBBER BUNA N OVERALL
SEATING SURFACE SHAPEFLAT
BODY OUTSIDE DIAMETER0.430 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.137 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
8270Interchangeable
interchangeable cross-reference
interchangeable
BA270UInterchangeable
interchangeable cross-reference
interchangeable
T235A204-1Interchangeable
interchangeable cross-reference
interchangeable
CM8270Interchangeable
interchangeable cross-reference
interchangeable
F432Interchangeable
interchangeable cross-reference
interchangeable
7890407-201Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 14540 PC18?
14540 PC18 is a SEAT,VALVE.
What parts can replace 14540 PC18?
There are 13 known substitutes for 14540 PC18: 8270, BA270U, T235A204-1 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 14540 PC18?
14540 PC18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-049-8710. 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