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Technical Data Sheet
PartsTable / COMPONENT / 3781994
3781994 ✓ 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 DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-621-5755, 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
3781994
NSN: 4820-00-621-5755
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
NSN4820-00-621-5755
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3781994 · 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
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
37819Interchangeable
interchangeable cross-reference
interchangeable
5330PL0815797Interchangeable
interchangeable cross-reference
interchangeable
40B887-104A112-16Interchangeable
interchangeable cross-reference
interchangeable
288047Interchangeable
interchangeable cross-reference
interchangeable
37783PC29Interchangeable
interchangeable cross-reference
interchangeable
E106-758-95Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3781994?
3781994 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 3781994?
There are 20 known substitutes for 3781994: 37819, 5330PL0815797, 40B887-104A112-16 and 17 more. Substitute compatibility should be verified for your specific system.
Is 3781994 still available?
3781994 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