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D50494 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D50494: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, valve_size: 4.000 INCHES IN, bonnet_type: INSIDE SCREW, flange_shape: ROUND WITH HOLES ALL ENDS, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.594 INCHES NOMINAL SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-236-0567, 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
D50494
NSN: 4810-01-236-0567
NIINs: 012360567, 012360607, 012360659
FSC: 4810 — Valves, Powered
CAGE: 34889 — HUNT VALVE COMPANY INC DBA UNION FLONETICS (USA)
SPECIFICATIONS
materialNICKEL ALLOY
valve_size4.000 INCHES IN
bonnet_typeINSIDE SCREW
flange_shapeROUND WITH HOLES ALL ENDS
thread_class2A SINGLE THREADED PORTION A
thread_length0.594 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_length15.250 INCHES NOMINAL IN
connection_typeFLANGE ALL ENDS
flange_diameter5.000 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
features_providedLOWER STEM
nominal_thickness0.500 INCHES ALL ENDS IN
NSN4810-01-236-0567
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D50494 · 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
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
BOLT CIRCLE NOMINAL DIAMETER: 6.562 INCHES ALL ENDS IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.562 INCHES ALL ENDS IN
•
VALVE SIZE: 4.000 INCHES IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER6.562 INCHES ALL ENDS IN
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
BOLT HOLE NOMINAL DIAMETER0.562 INCHES ALL ENDS IN
VALVE SIZE4.000 INCHES IN
BONNET TYPEINSIDE SCREW
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 3
D50494 AND A49836Reference document
Same NSN cross-reference
Reference document — Secondary reference
D50494-A280-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
A49836Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D50494?
D50494 is a STEM,FLUID VALVE.
What parts can replace D50494?
There are 3 known substitutes for D50494: D50494 AND A49836, D50494-A280-1, A49836. Substitute compatibility should be verified for your specific system.
What is the NSN for D50494?
D50494 is cataloged in the U.S. Government catalog under NSN 4810-01-236-0567. This indicates validated use in U.S. government and defense supply chains.
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