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P519 ✓ 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,VACUUM BREAKING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: SINGLE CONNECTION, STRAIGHT FLOW, mounting_style: DIMPLED W/MOUNTING HOLE, receptacle_width: 0.812 INCHES NOMINAL IN, receptacle_height: 0.164 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-142-3142, 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
P519
NSN: 4820-00-142-3142
FSC: 4820
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleSINGLE CONNECTION, STRAIGHT FLOW
mounting_styleDIMPLED W/MOUNTING HOLE
receptacle_width0.812 INCHES NOMINAL IN
receptacle_height0.164 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
temp_adjustabilityNOT ADJUSTABLE
flow_control_devicePOPPET
first_end_thread_class2A A
end_connection_quantity1
media_for_which_designedAIR
receptacle_overall_length1.375 INCHES NOMINAL IN
NSN4820-00-142-3142
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P519 · 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
•
MEDIA FOR WHICH DESIGNED: AIR
•
TEMP ADJUSTABILITY: NOT ADJUSTABLE
•
MATERIAL: ALUMINUM ALLOY BODY
•
SURFACE TREATMENT: ANODIZE OUTSIDE
•
BODY STYLE: SINGLE CONNECTION, STRAIGHT FLOW
•
FIRST END THREAD CLASS: 2A A
•
FLOW CONTROL DEVICE: POPPET
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDAIR
TEMP ADJUSTABILITYNOT ADJUSTABLE
MATERIALALUMINUM ALLOY BODY
SURFACE TREATMENTANODIZE OUTSIDE
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
FIRST END THREAD CLASS2A A
MATERIALALUMINUM ALLOY FLOW CONTROL DEVICE
FLOW CONTROL DEVICEPOPPET
END CONNECTION QUANTITY1
FIRST END STYLE DESIGNATOREXTERNAL SEAT FOR GASKET SEAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
PT214Interchangeable
interchangeable cross-reference
interchangeable
CW139MPInterchangeable
interchangeable cross-reference
interchangeable
PF-429Interchangeable
interchangeable cross-reference
interchangeable
V1NC2019Interchangeable
interchangeable cross-reference
interchangeable
P12739Interchangeable
interchangeable cross-reference
interchangeable
51139Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P519?
P519 is a VALVE,VACUUM BREAKING.
What parts can replace P519?
There are 21 known substitutes for P519: PT214, CW139MP, PF-429 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P519?
P519 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-142-3142. 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