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Technical Data Sheet
PartsTable / COMPONENT / 34429-11
34429-11 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_diameter: 2.875 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 30.000 NOMINAL, under_flange_height: 1.031 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN, body_inside_diameter: 1.938 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-160-6320, 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
34429-11
NSN: 4820-01-160-6320
FSC: 4820
CAGE: 85578 — MARK CONTROLS CORP PACIFIC VALVES DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter2.875 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
seat_angle_in_deg30.000 NOMINAL
under_flange_height1.031 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN
body_inside_diameter1.938 INCHES NOMINAL IN
body_outside_diameter2.566 INCHES MINIMUM AND 2.567 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
criticality_code_justificationZZZY
flange_seat_to_disk_end_height0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN4820-01-160-6320
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 34429-11 · 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
•
UNDER FLANGE HEIGHT: 1.031 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
SEATING SURFACE SHAPE: ANGULAR
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
•
FLANGE SEAT TO DISK END HEIGHT: 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 2.566 INCHES MINIMUM AND 2.567 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
UNDER FLANGE HEIGHT1.031 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZY
SEATING SURFACE SHAPEANGULAR
MATERIALSTEEL CORROSION RESISTING OVERALL
STYLE DESIGNATORPLAIN FLANGED
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
FLANGE SEAT TO DISK END HEIGHT0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.566 INCHES MINIMUM AND 2.567 INCHES MAXIMUM IN
SEAT ANGLE IN DEG30.000 NOMINAL
FLANGE DIAMETER2.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
SN7437N-00Interchangeable
interchangeable cross-reference
interchangeable
SN 7437Interchangeable
interchangeable cross-reference
interchangeable
01-49018-57Interchangeable
interchangeable cross-reference
interchangeable
6842Interchangeable
interchangeable cross-reference
interchangeable
7437Interchangeable
interchangeable cross-reference
interchangeable
10422Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 34429-11?
34429-11 is a SEAT,VALVE.
What parts can replace 34429-11?
There are 17 known substitutes for 34429-11: SN7437N-00, SN 7437, 01-49018-57 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 34429-11?
34429-11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-160-6320. 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