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PartsTable / COMPONENT / AA59440/5-021
AA59440/5-021 ✓ 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 AA59440/5-021 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-272-3332, 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
AA59440/5-021
NSN: 4820-00-272-3332
FSC: 4820
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberAA59440/5-021
NSN4820-00-272-3332
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: AA59440/5-021 · 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
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
THREAD SERIES DESIGNATOR: NPTF FIRST END
•
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.125 INCHES FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
VALVE OPERATION METHOD: MANUAL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A STYLE AND 3 DESIGN
•
STYLE DESIGNATOR: ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPTF FIRST END
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
VALVE OPERATION METHODMANUAL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A STYLE AND 3 DESIGN
STYLE DESIGNATORANGLE
MATERIALCOPPER ALLOY OVERALL
CONNECTION STYLEPLAIN (PIPE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
301803R91Interchangeable
interchangeable cross-reference
interchangeable
7524043Interchangeable
interchangeable cross-reference
interchangeable
44Z1233D1Interchangeable
interchangeable cross-reference
interchangeable
A-A-59440/4Interchangeable
interchangeable cross-reference
interchangeable
AA59440/4-019Interchangeable
interchangeable cross-reference
interchangeable
MS35785-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59440/5-021?
AA59440/5-021 is a AA59440/5-021.
What parts can replace AA59440/5-021?
There are 33 known substitutes for AA59440/5-021: 301803R91, 7524043, 44Z1233D1 and 30 more. Substitute compatibility should be verified for your specific system.
Is AA59440/5-021 still available?
AA59440/5-021 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026