PartsTable
Technical Data Sheet
LD1-25-1D ✓ 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,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A ALL ENDS A, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN, OPTIONAL END (PIPE) ALL ENDS, special_features: PAINTED GRAY, thread_direction: RIGHT-HAND ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-236-9454, 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
LD1-25-1D
NSN: 4820-00-236-9454
FSC: 4820
CAGE: 10129 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV GEAR PUMP DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A ALL ENDS A
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN, OPTIONAL END (PIPE) ALL ENDS
special_featuresPAINTED GRAY
thread_directionRIGHT-HAND ALL ENDS
mounting_facilityTHREADED FASTENER
mounting_positionHORIZONTAL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodWEIGHT
flow_control_devicePOPPET
nominal_thread_size0.500 INCHES ALL ENDS IN
NSN4820-00-236-9454
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: LD1-25-1D · 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
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
MOUNTING POSITION: HORIZONTAL
MOUNTING FACILITY: THREADED FASTENER
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
VALVE OPERATION METHOD: MANUAL
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPAINTED GRAY
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MOUNTING POSITIONHORIZONTAL
MOUNTING FACILITYTHREADED FASTENER
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
VALVE OPERATION METHODMANUAL
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL OVERALL
CENTER TO CENTER DISTANCE1.188 INCHES IN
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
1208-3-4S7Interchangeable
interchangeable cross-reference
interchangeable
4138300-98Interchangeable
interchangeable cross-reference
interchangeable
MS35489-6Interchangeable
interchangeable cross-reference
interchangeable
36BCNEInterchangeable
interchangeable cross-reference
interchangeable
16062Interchangeable
interchangeable cross-reference
interchangeable
229675-232Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LD1-25-1D?
LD1-25-1D is a VALVE,CHECK.
What parts can replace LD1-25-1D?
There are 19 known substitutes for LD1-25-1D: 1208-3-4S7, 4138300-98, MS35489-6 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LD1-25-1D?
LD1-25-1D is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-236-9454. This indicates validated use in U.S. government and defense supply chains.
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