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D-4729 — D-4729

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

D-4729: D-4729.

The D-4729 is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY FLOW CONTROL DEVICE, bonnet_type: EXPOSED SPRING, flange_shape: ROUND WITH HOLES SECOND END, connection_type: FLANGE SECOND END, connection_style: PLAIN,OPTIONAL END(PIPE) FIRST END, special_features: BOLT HOLES IN FLANGE TO STRADDLE CENTERLINES. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-203-8030, 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
MRO→ MRO_GENERAL→ D-4729
NSN: 4820-00-203-8030
NIINs: 002038030, 017020950
FSC: 4820 — Valves, Nonpowered
CAGE: 37239 — LUNKENHEIMER CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY FLOW CONTROL DEVICE
bonnet_typeEXPOSED SPRING
flange_shapeROUND WITH HOLES SECOND END
connection_typeFLANGE SECOND END
connection_stylePLAIN,OPTIONAL END(PIPE) FIRST END
special_featuresBOLT HOLES IN FLANGE TO STRADDLE CENTERLINES
style_designatorANGLE FLANGED ENDS
thread_directionRIGHT-HAND FIRST END
features_providedVALVE STEM LOCK SHIELD
nominal_thickness0.438 INCHES SECOND END IN
bolt_hole_quantity4 SECOND END
flange_face_designPLAIN SECOND END
NSN4820-00-203-8030
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D-4729 · 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: POPPET
•
FLANGE SHAPE: ROUND WITH HOLES SECOND END
•
RENEWABLE SEAT RING TYPE: THREADED
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.500 INCHES FIRST END IN
•
FLANGE FACE DESIGN: PLAIN SECOND END
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) FIRST END
•
BOLT CIRCLE NOMINAL DIAMETER: 3.375 INCHES SECOND END IN
•
CONNECTION TYPE: FLANGE SECOND END
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
FLANGE SHAPEROUND WITH HOLES SECOND END
RENEWABLE SEAT RING TYPETHREADED
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES FIRST END IN
FLANGE FACE DESIGNPLAIN SECOND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
BOLT CIRCLE NOMINAL DIAMETER3.375 INCHES SECOND END IN
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
STYLE DESIGNATORANGLE FLANGED ENDS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D-4729?
D-4729 is a D-4729. It is classified as a MRO (MRO_GENERAL).
What is the NSN for D-4729?
D-4729 is cataloged in the U.S. Government catalog under NSN 4820-00-203-8030. This indicates validated use in U.S. government and defense supply chains.
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