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Technical Data Sheet
PartsTable / COMPONENT / 440561R1
440561R1 ✓ 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 COCK,DRAIN is a the manufacturer industrial component. Key specifications include special_features: NEXT HIGHER ASSEMBLY, PART NUMBER 010138, end_item_identification: P-6 BRAKE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-495-4012, 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
440561R1
NSN: 4820-01-495-4012
FSC: 4820
CAGE: 21439 — CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA (USA)
SPECIFICATIONS
special_featuresNEXT HIGHER ASSEMBLY, PART NUMBER 010138
end_item_identificationP-6 BRAKE
NSN4820-01-495-4012
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 440561R1 · 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 IDENTIFICATIONP-6 BRAKE
SPECIAL FEATURESNEXT HIGHER ASSEMBLY, PART NUMBER 010138
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
920011-17Interchangeable
interchangeable cross-reference
interchangeable
70267Interchangeable
interchangeable cross-reference
interchangeable
13843Interchangeable
interchangeable cross-reference
interchangeable
100-573Interchangeable
interchangeable cross-reference
interchangeable
MK827USM118Interchangeable
interchangeable cross-reference
interchangeable
28569MK827Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 440561R1?
440561R1 is a COCK,DRAIN.
What parts can replace 440561R1?
There are 7 known substitutes for 440561R1: 920011-17, 70267, 13843 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 440561R1?
440561R1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-495-4012. 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