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Technical Data Sheet
PartsTable / COMPONENT / 181A300
181A300 ✓ 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 VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT (AC-130A, AC-130H, MC-130H, EC-130E, HC-130) A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-445-5603, 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
181A300
NSN: 4810-01-445-5603
FSC: 4810
CAGE: 03640 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
end_item_identificationAIRCRAFT (AC-130A, AC-130H, MC-130H, EC-130E, HC-130) A
NSN4810-01-445-5603
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 181A300 · 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 IDENTIFICATIONAIRCRAFT (AC-130A, AC-130H, MC-130H, EC-130E, HC-130) A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3686Interchangeable
interchangeable cross-reference
interchangeable
10383838Interchangeable
interchangeable cross-reference
interchangeable
1251Interchangeable
interchangeable cross-reference
interchangeable
99206-22Interchangeable
interchangeable cross-reference
interchangeable
30151226Interchangeable
interchangeable cross-reference
interchangeable
745-0904-000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 181A300?
181A300 is a VALVE,BUTTERFLY.
What parts can replace 181A300?
There are 12 known substitutes for 181A300: 3686, 10383838, 1251 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 181A300?
181A300 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-445-5603. 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