PartsTable
Technical Data Sheet
Y303701011 ✓ 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,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: COBALT ALLOY SEAT, body_style: STRAIGHT THRU, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, regulation_type: AUTOMATIC SINGLE STAGE, special_features: FLOW CONTROL DEVICE MATERIAL: STEEL ASTM A276 TYPE 420. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-007-4595, 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
Y303701011
NSN: 4820-00-007-4595
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialCOBALT ALLOY SEAT
body_styleSTRAIGHT THRU
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
regulation_typeAUTOMATIC SINGLE STAGE
special_featuresFLOW CONTROL DEVICE MATERIAL: STEEL ASTM A276 TYPE 420
flow_control_deviceDISK, TOP GUIDED
valve_loading_methodSPRING
face_to_face_distance11.625 INCHES NOMINAL IN
end_connection_quantity2
media_for_which_designedSTEAM
first_end_flange_thickness0.625 INCHES NOMINAL IN
NSN4820-00-007-4595
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: Y303701011 · 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 DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
FLOW CONTROL DEVICE: DISK, TOP GUIDED
FIRST END RAISED FACE DIAMETER: 4.125 INCHES NOMINAL IN
MATERIAL: STEEL FLOW CONTROL DEVICE
REGULATION TYPE: AUTOMATIC SINGLE STAGE
BODY STYLE: STRAIGHT THRU
FIRST END FLANGE OUTSIDE DIAMETER: 7.000 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNED: STEAM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
FLOW CONTROL DEVICEDISK, TOP GUIDED
FIRST END RAISED FACE DIAMETER4.125 INCHES NOMINAL IN
MATERIALSTEEL FLOW CONTROL DEVICE
REGULATION TYPEAUTOMATIC SINGLE STAGE
BODY STYLESTRAIGHT THRU
FIRST END FLANGE OUTSIDE DIAMETER7.000 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNEDSTEAM
FIRST END BOLT CIRCLE DIAMETER5.500 INCHES NOMINAL IN
FIRST END STYLE DESIGNATORRAISED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
MIL-V-17848Interchangeable
interchangeable cross-reference
interchangeable
17390NInterchangeable
interchangeable cross-reference
interchangeable
CLLNS5D17390NInterchangeable
interchangeable cross-reference
interchangeable
Y303700511Interchangeable
interchangeable cross-reference
interchangeable
17390N/FLNS5D 2Interchangeable
interchangeable cross-reference
interchangeable
17390N-2172IN-LNS-5D3/4INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Y303701011?
Y303701011 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace Y303701011?
There are 9 known substitutes for Y303701011: MIL-V-17848, 17390N, CLLNS5D17390N and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Y303701011?
Y303701011 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-007-4595. This indicates validated use in U.S. government and defense supply chains.
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