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Technical Data Sheet
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A74078 ✓ 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 GASKET,SEAT is a the manufacturer industrial component. Key specifications include end_item_identification: SUPPLY CLASS AOE, part_name_assigned_by_controlling_agency: SEAT GASKET. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-441-7720, 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
A74078
NSN: 4820-01-441-7720
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
end_item_identificationSUPPLY CLASS AOE
part_name_assigned_by_controlling_agencySEAT GASKET
NSN4820-01-441-7720
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A74078 · 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)
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAT GASKET
END ITEM IDENTIFICATIONSUPPLY CLASS AOE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
74078Interchangeable
interchangeable cross-reference
interchangeable
C12275Interchangeable
interchangeable cross-reference
interchangeable
74000Interchangeable
interchangeable cross-reference
interchangeable
29391Interchangeable
interchangeable cross-reference
interchangeable
Y109101001Interchangeable
interchangeable cross-reference
interchangeable
S520202701Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A74078?
A74078 is a GASKET,SEAT.
What parts can replace A74078?
There are 8 known substitutes for A74078: 74078, C12275, 74000 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A74078?
A74078 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-441-7720. 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