PartsTable
Technical Data Sheet
DD-1686 ✓ 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 VALVE,PLUG is a the manufacturer industrial component. Key specifications include flange_shape: ROUND WITH HOLES FIRST END, connection_type: FLANGE FIRST END, nominal_thickness: 0.500 INCHES FIRST END IN, bolt_hole_quantity: 6 FIRST END, flange_face_design: PLAIN FIRST END, valve_operation_method: MANUAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-045-1672, 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
DD-1686
NSN: 4820-01-045-1672
FSC: 4820
CAGE: 53424 — CUNICO CORPORATION (USA)
SPECIFICATIONS
flange_shapeROUND WITH HOLES FIRST END
connection_typeFLANGE FIRST END
nominal_thickness0.500 INCHES FIRST END IN
bolt_hole_quantity6 FIRST END
flange_face_designPLAIN FIRST END
valve_operation_methodMANUAL
nominal_outside_diameter7.688 INCHES FIRST END IN
bolt_hole_nominal_diameter0.562 INCHES FIRST END IN
nondefinitive_spec/std_data2 TYPE
bolt_circle_nominal_diameter6.562 INCHES FIRST END IN
NSN4820-01-045-1672
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: DD-1686 · 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
BOLT HOLE QUANTITY: 6 FIRST END
NOMINAL THICKNESS: 0.500 INCHES FIRST END IN
BOLT HOLE NOMINAL DIAMETER: 0.562 INCHES FIRST END IN
FLANGE FACE DESIGN: PLAIN FIRST END
CONNECTION TYPE: FLANGE FIRST END
FLANGE SHAPE: ROUND WITH HOLES FIRST END
BOLT CIRCLE NOMINAL DIAMETER: 6.562 INCHES FIRST END IN
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE QUANTITY6 FIRST END
NOMINAL THICKNESS0.500 INCHES FIRST END IN
BOLT HOLE NOMINAL DIAMETER0.562 INCHES FIRST END IN
FLANGE FACE DESIGNPLAIN FIRST END
CONNECTION TYPEFLANGE FIRST END
FLANGE SHAPEROUND WITH HOLES FIRST END
BOLT CIRCLE NOMINAL DIAMETER6.562 INCHES FIRST END IN
VALVE OPERATION METHODMANUAL
NONDEFINITIVE SPEC/STD DATA2 TYPE
NOMINAL OUTSIDE DIAMETER7.688 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
M24509-80I0HPInterchangeable
interchangeable cross-reference
interchangeable
TYPEI8INInterchangeable
interchangeable cross-reference
interchangeable
MIL-V-24509Interchangeable
interchangeable cross-reference
interchangeable
TYPEI3 1-2INInterchangeable
interchangeable cross-reference
interchangeable
3132166-3 1-2INInterchangeable
interchangeable cross-reference
interchangeable
M24509-35I0LPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DD-1686?
DD-1686 is a VALVE,PLUG.
What parts can replace DD-1686?
There are 25 known substitutes for DD-1686: M24509-80I0HP, TYPEI8IN, MIL-V-24509 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD-1686?
DD-1686 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-045-1672. This indicates validated use in U.S. government and defense supply chains.
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