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Technical Data Sheet
PartsTable / COMPONENT / LFN36-1/2"
LFN36-1/2" ✓ 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 LFN36-1/2" is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-425-1066, 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
LFN36-1/2"
NSN: 4820-01-425-1066
FSC: 4820
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
Part NumberLFN36-1/2"
NSN4820-01-425-1066
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LFN36-1/2" · 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
KEY FEATURES
•
FIRST END STYLE DESIGNATOR: PLAIN
•
MEDIA FOR WHICH DESIGNED: WATER, FRESH
•
MATERIAL: COPPER ALLOY BODY
•
ABSOLUTE PRESSURE SETTING: 0.2
•
FLOW CONTROL DEVICE: DISK, CIRCULAR
•
TEMP ADJUSTABILITY: NOT ADJUSTABLE
•
FIRST END NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLE DESIGNATORPLAIN
MEDIA FOR WHICH DESIGNEDWATER, FRESH
MATERIALCOPPER ALLOY BODY
ABSOLUTE PRESSURE SETTING0.2
FLOW CONTROL DEVICEDISK, CIRCULAR
TEMP ADJUSTABILITYNOT ADJUSTABLE
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES IN
END ITEM IDENTIFICATION4130-01-381-6650 SUPPORT EQUIPMENT,E-3A AIRCRAFT A
FIRST END THREAD SERIES DESIGNATORNPT
TEMP RATING250.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
N36Interchangeable
interchangeable cross-reference
interchangeable
N35Interchangeable
interchangeable cross-reference
interchangeable
HC4911SPCN36Interchangeable
interchangeable cross-reference
interchangeable
14939Interchangeable
interchangeable cross-reference
interchangeable
59-4862-1Interchangeable
interchangeable cross-reference
interchangeable
86E202-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LFN36-1/2"?
LFN36-1/2" is a LFN36-1/2".
What parts can replace LFN36-1/2"?
There are 13 known substitutes for LFN36-1/2": N36, N35, HC4911SPCN36 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LFN36-1/2"?
LFN36-1/2" is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-425-1066. 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