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39783G ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, overall_height: 0.270 INCHES NOMINAL IN, body_inside_diameter: 7.950 INCHES NOMINAL IN, body_outside_diameter: 9.935 INCHES NOMINAL IN, seating_surface_shape: FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-226-1656, 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
39783G
NSN: 4820-01-226-1656
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
overall_height0.270 INCHES NOMINAL IN
body_inside_diameter7.950 INCHES NOMINAL IN
body_outside_diameter9.935 INCHES NOMINAL IN
seating_surface_shapeFLAT
NSN4820-01-226-1656
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 39783G · 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
•
SEATING SURFACE SHAPE: FLAT
•
BODY OUTSIDE DIAMETER: 9.935 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY OVERALL
•
BODY INSIDE DIAMETER: 7.950 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEATING SURFACE SHAPEFLAT
OVERALL HEIGHT0.270 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER9.935 INCHES NOMINAL IN
MATERIALNICKEL ALLOY OVERALL
BODY INSIDE DIAMETER7.950 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
39783Interchangeable
interchangeable cross-reference
interchangeable
0096634Interchangeable
interchangeable cross-reference
interchangeable
PC78313-3Interchangeable
interchangeable cross-reference
interchangeable
39873Interchangeable
interchangeable cross-reference
interchangeable
49880 PIECE 27Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 39783G?
39783G is a SEAT,VALVE.
What parts can replace 39783G?
There are 5 known substitutes for 39783G: 39783, 0096634, PC78313-3 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 39783G?
39783G is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-226-1656. 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