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1.5-1700FB — VALVE,VENT-CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1.5-1700FB: VALVE,VENT-CHECK.

The VALVE,VENT-CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY FLOW CONTROL DEVICE, valve_size: 1.500 INCHES IN, flange_shape: ROUND WITH HOLES FIRST END, connection_type: FLANGE FIRST END, style_designator: STRAIGHT THRU FLANGED ENDS, mounting_position: VERTICAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-449-4960, 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
1.5-1700FB
NSN: 4820-01-449-4960
FSC: 4820 — Valves, Nonpowered
CAGE: 79128 — ROBERT H WAGER CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY FLOW CONTROL DEVICE
valve_size1.500 INCHES IN
flange_shapeROUND WITH HOLES FIRST END
connection_typeFLANGE FIRST END
style_designatorSTRAIGHT THRU FLANGED ENDS
mounting_positionVERTICAL
nominal_thickness0.688 INCHES FIRST END IN
bolt_hole_quantity4 FIRST END
flange_face_designPLAIN FIRST END
flow_control_deviceBALL
face_to_face_distance4.750 INCHES IN
valve_operation_methodAUTOMATIC
NSN4820-01-449-4960
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1.5-1700FB · 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: BALL
•
FLANGE SHAPE: ROUND WITH HOLES FIRST END
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
BOLT CIRCLE NOMINAL DIAMETER: 3.875 INCHES FIRST END IN
•
MOUNTING POSITION: VERTICAL
•
CONNECTION TYPE: FLANGE FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.625 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEBALL
FLANGE SHAPEROUND WITH HOLES FIRST END
FLANGE FACE DESIGNPLAIN FIRST END
BOLT CIRCLE NOMINAL DIAMETER3.875 INCHES FIRST END IN
MOUNTING POSITIONVERTICAL
CONNECTION TYPEFLANGE FIRST END
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
BOLT HOLE NOMINAL DIAMETER0.625 INCHES FIRST END IN
VALVE SIZE1.500 INCHES IN
NOMINAL OUTSIDE DIAMETER5.000 INCHES FIRST END IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 1.5-1700FB?
1.5-1700FB is a VALVE,VENT-CHECK.
What is the NSN for 1.5-1700FB?
1.5-1700FB is cataloged in the U.S. Government catalog under NSN 4820-01-449-4960. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.