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550985 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

550985: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include bonnet_type: INSIDE SCREW, flange_shape: RECTANGULAR WITH HOLES FIRST END, connection_type: FLANGE FIRST END, style_designator: STRAIGHT THRU FLANGED ENDS, bolt_hole_quantity: 4 FIRST END, flange_face_design: RECESSED STRAIGHT FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-822-8046, 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
550985
NSN: 4820-00-822-8046
NIINs: 008228046, 015769002
FSC: 4820 — Valves, Nonpowered
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
bonnet_typeINSIDE SCREW
flange_shapeRECTANGULAR WITH HOLES FIRST END
connection_typeFLANGE FIRST END
style_designatorSTRAIGHT THRU FLANGED ENDS
bolt_hole_quantity4 FIRST END
flange_face_designRECESSED STRAIGHT FIRST END
recess_nominal_depth0.055 INCHES FIRST END IN
face_to_face_distance1.440 INCHES IN
valve_operation_methodAIR
recess_nominal_diameter1.520 INCHES FIRST END IN
bolt_hole_nominal_diameter0.190 INCHES FIRST END IN
NSN4820-00-822-8046
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 550985 · 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
•
RECESS NOMINAL DEPTH: 0.055 INCHES FIRST END IN
•
FLANGE SHAPE: RECTANGULAR WITH HOLES FIRST END
•
FLANGE FACE DESIGN: RECESSED STRAIGHT FIRST END
•
CONNECTION TYPE: FLANGE FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.190 INCHES FIRST END IN
•
BONNET TYPE: INSIDE SCREW
•
BOLT HOLE QUANTITY: 4 FIRST END
TECHNICAL CHARACTERISTICS
RECESS NOMINAL DEPTH0.055 INCHES FIRST END IN
FLANGE SHAPERECTANGULAR WITH HOLES FIRST END
FLANGE FACE DESIGNRECESSED STRAIGHT FIRST END
CONNECTION TYPEFLANGE FIRST END
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
BOLT HOLE NOMINAL DIAMETER0.190 INCHES FIRST END IN
BONNET TYPEINSIDE SCREW
BOLT HOLE QUANTITY4 FIRST END
FACE TO FACE DISTANCE1.440 INCHES IN
VALVE OPERATION METHODAIR
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 550985?
550985 is a VALVE,BUTTERFLY.
What is the NSN for 550985?
550985 is cataloged in the U.S. Government catalog under NSN 4820-00-822-8046. This indicates validated use in U.S. government and defense supply chains.
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