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N40745 ✓ 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 RETAINER,SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 4.753 INCHES NOMINAL IN, inside_diameter: 2.125 INCHES NOMINAL IN, outside_diameter: 2.873 INCHES NOMINAL IN, valve_design_control_activity: 35795, valve_size_for_which_designed: 3.000 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-199-6375, 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
N40745
NSN: 4820-01-199-6375
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_length4.753 INCHES NOMINAL IN
inside_diameter2.125 INCHES NOMINAL IN
outside_diameter2.873 INCHES NOMINAL IN
valve_design_control_activity35795
valve_size_for_which_designed3.000 INCHES IN
valve_model_number_for_which_designedCLASS DDONSX
NSN4820-01-199-6375
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N40745 · 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
•
INSIDE DIAMETER: 2.125 INCHES NOMINAL IN
•
VALVE DESIGN CONTROL ACTIVITY: 35795
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: CLASS DDONSX
•
VALVE SIZE FOR WHICH DESIGNED: 3.000 INCHES IN
•
MATERIAL: STEEL CORROSION RESISTING
•
OUTSIDE DIAMETER: 2.873 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER2.125 INCHES NOMINAL IN
VALVE DESIGN CONTROL ACTIVITY35795
VALVE MODEL NUMBER FOR WHICH DESIGNEDCLASS DDONSX
VALVE SIZE FOR WHICH DESIGNED3.000 INCHES IN
MATERIALSTEEL CORROSION RESISTING
OUTSIDE DIAMETER2.873 INCHES NOMINAL IN
OVERALL LENGTH4.753 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
24930Interchangeable
interchangeable cross-reference
interchangeable
40745Interchangeable
interchangeable cross-reference
interchangeable
SC1XInterchangeable
interchangeable cross-reference
interchangeable
L680099-5Interchangeable
interchangeable cross-reference
interchangeable
115-5-0BInterchangeable
interchangeable cross-reference
interchangeable
MK3681Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N40745?
N40745 is a RETAINER,SEAT,VALVE.
What parts can replace N40745?
There are 18 known substitutes for N40745: 24930, 40745, SC1X and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N40745?
N40745 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-199-6375. 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