PartsTable
Technical Data Sheet
145HS218-1 ✓ 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

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include thread_class: 3A A, connection_type: THREADED EXTERNAL TUBE, special_features: CARTRIDGE TYPE VALVE, nominal_thread_size: 1.250 INCHES IN, valve_operation_method: HYDRAULIC, thread_quantity_per_inch: 12. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-121-5297, 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
145HS218-1
NSN: 4820-01-121-5297
FSC: 4820
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
thread_class3A A
connection_typeTHREADED EXTERNAL TUBE
special_featuresCARTRIDGE TYPE VALVE
nominal_thread_size1.250 INCHES IN
flow_pattern_quantity3
valve_operation_methodHYDRAULIC
spool_position_quantity2
thread_quantity_per_inch12
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
valve_discharge_flow_rate6.0 GALLONS PER MINUTE
NSN4820-01-121-5297
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 145HS218-1 · 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
NOMINAL THREAD SIZE: 1.250 INCHES IN
VALVE OPERATION METHOD: HYDRAULIC
THREAD CLASS: 3A A
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
VALVE DISCHARGE FLOW RATE: 6.0 GALLONS PER MINUTE
FLOW PATTERN QUANTITY: 3
THREAD QUANTITY PER INCH: 12
SPOOL POSITION QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE1.250 INCHES IN
VALVE OPERATION METHODHYDRAULIC
THREAD CLASS3A A
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
VALVE DISCHARGE FLOW RATE6.0 GALLONS PER MINUTE
FLOW PATTERN QUANTITY3
THREAD QUANTITY PER INCH12
SPOOL POSITION QUANTITY2
CONNECTION TYPETHREADED EXTERNAL TUBE
SPECIAL FEATURESCARTRIDGE TYPE VALVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
A162Interchangeable
interchangeable cross-reference
interchangeable
1111Interchangeable
interchangeable cross-reference
interchangeable
P912Interchangeable
interchangeable cross-reference
interchangeable
A16.2Interchangeable
interchangeable cross-reference
interchangeable
05G10012-0001Interchangeable
interchangeable cross-reference
interchangeable
A206Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 145HS218-1?
145HS218-1 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 145HS218-1?
There are 12 known substitutes for 145HS218-1: A162, 1111, P912 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 145HS218-1?
145HS218-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-121-5297. This indicates validated use in U.S. government and defense supply chains.
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