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81871-3 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

81871-3: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include material: TITANIUM STEM, valve_size: 1.500 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: DESIGNED FOR USE WITH CHLORINATED SEAWATER; NHA IS HYPOCHLORINATOR SYSTEM, style_designator: STRAIGHT THRU FLANGED ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-499-0612, 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
81871-3
NSN: 4820-01-499-0612
FSC: 4820 — Valves, Nonpowered
CAGE: 89357 — EVOQUA WATER TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialTITANIUM STEM
valve_size1.500 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresDESIGNED FOR USE WITH CHLORINATED SEAWATER; NHA IS HYPOCHLORINATOR SYSTEM
style_designatorSTRAIGHT THRU FLANGED ENDS
nominal_thickness0.828 INCHES ALL ENDS IN
bolt_hole_quantity6 ALL ENDS
flange_face_designPLAIN ALL ENDS
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
face_to_face_distance7.500 INCHES IN
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-01-499-0612
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81871-3 · 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
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
FURNISHED ITEMS AND QUANTITY: 1 HANDLE
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
BOLT CIRCLE NOMINAL DIAMETER: 3.9375 INCHES ALL ENDS IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.5625 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FURNISHED ITEMS AND QUANTITY1 HANDLE
FLANGE FACE DESIGNPLAIN ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER3.9375 INCHES ALL ENDS IN
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
BOLT HOLE NOMINAL DIAMETER0.5625 INCHES ALL ENDS IN
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE SIZE1.500 INCHES IN
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 1
82603-001 ITEM 2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 81871-3?
81871-3 is a VALVE,BALL.
What parts can replace 81871-3?
There is 1 known substitute for 81871-3: 82603-001 ITEM 2. Substitute compatibility should be verified for your specific system.
What is the NSN for 81871-3?
81871-3 is cataloged in the U.S. Government catalog under NSN 4820-01-499-0612. This indicates validated use in U.S. government and defense supply chains.
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