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Technical Data Sheet
PartsTable / COMPONENT / C595C
C595C ✓ 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, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 3.718 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 3.500 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-956-3006, 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
C595C
NSN: 4820-00-956-3006
FSC: 4820
CAGE: 33547 — KIELEY AND MUELLER INC SUB OF JOHNSON CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class3A SINGLE THREADED PORTION A
thread_length0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter3.718 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size3.500 INCHES SINGLE THREADED PORTION IN
under_flange_height0.687 INCHES NOMINAL IN
body_inside_diameter3.000 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_quantity_per_inch16 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.125 INCHES NOMINAL IN
NSN4820-00-956-3006
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: C595C · 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
•
STYLE DESIGNATOR: THREADED FLANGED
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD LENGTH: 0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.687 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: FLAT
•
FLANGE DIAMETER: 3.718 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 3.500 INCHES SINGLE THREADED PORTION IN
•
THREAD SERIES DESIGNATOR: UN SINGLE THREADED PORTION
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORTHREADED FLANGED
MATERIALNICKEL ALLOY OVERALL
THREAD LENGTH0.312 INCHES NOMINAL SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.687 INCHES NOMINAL IN
SEATING SURFACE SHAPEFLAT
FLANGE DIAMETER3.718 INCHES NOMINAL IN
NOMINAL THREAD SIZE3.500 INCHES SINGLE THREADED PORTION IN
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
BODY INSIDE DIAMETER3.000 INCHES NOMINAL IN
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
B-14-5-2Interchangeable
interchangeable cross-reference
interchangeable
D-42085 PIECE 124Interchangeable
interchangeable cross-reference
interchangeable
D-42085Interchangeable
interchangeable cross-reference
interchangeable
79C0894-01Interchangeable
interchangeable cross-reference
interchangeable
855-19723-Q-70Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C595C?
C595C is a SEAT,VALVE.
What parts can replace C595C?
There are 5 known substitutes for C595C: B-14-5-2, D-42085 PIECE 124, D-42085 and 2 more. Substitute compatibility should be verified for your specific system.
Is C595C still available?
C595C 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