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Technical Data Sheet
PartsTable / COMPONENT / A-A-59440/1
A-A-59440/1 ✓ 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 A-A-59440/1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-174-0339, 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
A-A-59440/1
NSN: 4820-00-174-0339
FSC: 4820
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberA-A-59440/1
NSN4820-00-174-0339
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A-A-59440/1 · 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 SERIES DESIGNATOR: NPTF FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
MATERIAL: COPPER ALLOY OVERALL
•
FLOW CONTROL DEVICE: DISK OR STEM
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
VALVE OPERATION METHOD: MANUAL
•
SPECIFICATION/STANDARD DATA: 96906-MS36782-3 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPTF FIRST END
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND FIRST END
MATERIALCOPPER ALLOY OVERALL
FLOW CONTROL DEVICEDISK OR STEM
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES FIRST END IN
VALVE OPERATION METHODMANUAL
SPECIFICATION/STANDARD DATA96906-MS36782-3 GOVERNMENT STANDARD
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
31079S7Interchangeable
interchangeable cross-reference
interchangeable
132193Interchangeable
interchangeable cross-reference
interchangeable
56X108UInterchangeable
interchangeable cross-reference
interchangeable
672221Interchangeable
interchangeable cross-reference
interchangeable
C2AA9324AInterchangeable
interchangeable cross-reference
interchangeable
10098AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-59440/1?
A-A-59440/1 is a A-A-59440/1.
What parts can replace A-A-59440/1?
There are 33 known substitutes for A-A-59440/1: 31079S7, 132193, 56X108U and 30 more. Substitute compatibility should be verified for your specific system.
Is A-A-59440/1 still available?
A-A-59440/1 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