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Technical Data Sheet
PartsTable / COMPONENT / 1AO900
1AO900 ✓ 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 THERMAL VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: SONAR TA TICA. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-559-0157, 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
1AO900
NSN: 4820-01-559-0157
FSC: 4820
CAGE: 64030 — HYDRO ENGINEERING INNOVATION, LLC (USA)
SPECIFICATIONS
end_item_identificationSONAR TA TICA
NSN4820-01-559-0157
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1AO900 · 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 IDENTIFICATION5/3000 GHOTT/M PRESSURE WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
7-140Interchangeable
interchangeable cross-reference
interchangeable
U96-5084SUBPT7Interchangeable
interchangeable cross-reference
interchangeable
424318PC3Interchangeable
interchangeable cross-reference
interchangeable
139Interchangeable
interchangeable cross-reference
interchangeable
TD600T103CS1Interchangeable
interchangeable cross-reference
interchangeable
2C5098SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1AO900?
1AO900 is a THERMAL VALVE.
What parts can replace 1AO900?
There are 15 known substitutes for 1AO900: 7-140, U96-5084SUBPT7, 424318PC3 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1AO900?
1AO900 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-559-0157. 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