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Technical Data Sheet
PartsTable / COMPONENT / LT-66
LT-66 ✓ 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 VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include body_material: STEEL CORROSION RESISTING, flow_control_device: NEEDLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-114-0899, 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
LT-66
NSN: 4820-00-114-0899
FSC: 4820
CAGE: 17529 — OASIS CONSTRUCTION DIV SUPPLY NURSES (USA)
SPECIFICATIONS
body_materialSTEEL CORROSION RESISTING
flow_control_deviceNEEDLE
NSN4820-00-114-0899
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LT-66 · 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
•
BODY MATERIAL: STEEL CORROSION RESISTING
•
FLOW CONTROL DEVICE: NEEDLE
TECHNICAL CHARACTERISTICS (FLIS)
BODY MATERIALSTEEL CORROSION RESISTING
FLOW CONTROL DEVICENEEDLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1477Interchangeable
interchangeable cross-reference
interchangeable
42Interchangeable
interchangeable cross-reference
interchangeable
0042-0P-5-1-14-002Interchangeable
interchangeable cross-reference
interchangeable
BX19-5Interchangeable
interchangeable cross-reference
interchangeable
1816AInterchangeable
interchangeable cross-reference
interchangeable
4105C798164ALTAPC23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LT-66?
LT-66 is a VALVE,FLOW CONTROL.
What parts can replace LT-66?
There are 14 known substitutes for LT-66: 1477, 42, 0042-0P-5-1-14-002 and 11 more. Substitute compatibility should be verified for your specific system.
Is LT-66 still available?
LT-66 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026