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Technical Data Sheet
PartsTable / COMPONENT / P42-319
P42-319 ✓ 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: ALUMINUM ALLOY 2024 OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, special_features: THE END CONNECTION IDENTIFIEDABOVE AS THE SECOND END IS THE VALVE INLET. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-904-2302, 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
P42-319
NSN: 4820-00-904-2302
FSC: 4820
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
seat_angle37.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
special_featuresTHE END CONNECTION IDENTIFIEDABOVE AS THE SECOND END IS THE VALVE INLET
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
mounting_positionHORIZONTAL OR VERTICAL
surface_treatmentANODIZE
operating_pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
disk_loading_methodSPRING
NSN4820-00-904-2302
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: P42-319 · 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
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MEDIA FOR WHICH DESIGNED: AIR FIRST RESPONSE
•
NOMINAL THREAD SIZE: 0.437 INCHES FIRST END IN
•
SURFACE TREATMENT: ANODIZE
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY 2024 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESTHE END CONNECTION IDENTIFIEDABOVE AS THE SECOND END IS THE VALVE INLET
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
NOMINAL THREAD SIZE0.437 INCHES FIRST END IN
SURFACE TREATMENTANODIZE
THREAD SERIES DESIGNATORUNF ALL ENDS
MAXIMUM OPERATING TEMP-65.0 FAHRENHEIT FIRST RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDALCOHOL, ETHYL SECOND RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
C-2222Interchangeable
interchangeable cross-reference
interchangeable
DB200563Interchangeable
interchangeable cross-reference
interchangeable
9546Interchangeable
interchangeable cross-reference
interchangeable
4820PL1398799Interchangeable
interchangeable cross-reference
interchangeable
Z01CV04-8Interchangeable
interchangeable cross-reference
interchangeable
4820PL0654940Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P42-319?
P42-319 is a VALVE,CHECK.
What parts can replace P42-319?
There are 6 known substitutes for P42-319: C-2222, DB200563, 9546 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P42-319?
P42-319 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-904-2302. 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