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PartsTable / COMPONENT / 30143 ITEM 11
30143 ITEM 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: E/I:4 X 6 INCH RELIEF VALVE. 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 4820-01-506-9053, 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
30143 ITEM 11
NSN: 4820-01-506-9053
FSC: 4820
CAGE: 95169 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV TARGET ROCK DIVISION (USA)
SPECIFICATIONS
end_item_identificationE/I:4 X 6 INCH RELIEF VALVE. IN
NSN4820-01-506-9053
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 30143 ITEM 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONE/I:4 X 6 INCH RELIEF VALVE. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
49372HInterchangeable
interchangeable cross-reference
interchangeable
137178Interchangeable
interchangeable cross-reference
interchangeable
266697Interchangeable
interchangeable cross-reference
interchangeable
2173Interchangeable
interchangeable cross-reference
interchangeable
QQB575R30T0437Interchangeable
interchangeable cross-reference
interchangeable
NEQ241030TInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30143 ITEM 11?
30143 ITEM 11 is a DISK,VALVE.
What parts can replace 30143 ITEM 11?
There are 15 known substitutes for 30143 ITEM 11: 49372H, 137178, 266697 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30143 ITEM 11?
30143 ITEM 11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-506-9053. 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