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146859-1 — DIAPHRAGM,ACTUATOR VALVE,SPECIAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

146859-1: DIAPHRAGM,ACTUATOR VALVE,SPECIAL.

DIAPHRAGM,ACTUATOR VALVE,SPECIAL. Key specifications include material: PLASTIC POLYVINYL, bead_diameter: 0.938 INCHES NOMINAL IN, hole_diameter: 0.125 INCHES NOMINAL IN, outside_diameter: 1.688 INCHES NOMINAL IN, style_designator: SPECIAL SHAPED, material_thickness: 0.022 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-006-7909, 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
146859-1
NSN: 4820-00-006-7909
FSC: 4820 — Valves, Nonpowered
CAGE: 64547 — HONEYWELL INTERNATIONAL, INC DIV AEROSPACE-TUCSON (USA)
SPECIFICATIONS
materialPLASTIC POLYVINYL
bead_diameter0.938 INCHES NOMINAL IN
hole_diameter0.125 INCHES NOMINAL IN
outside_diameter1.688 INCHES NOMINAL IN
style_designatorSPECIAL SHAPED
bolt_hole_quantity5
material_thickness0.022 INCHES NOMINAL IN
bolt_circle_diameter1.400 INCHES NOMINAL IN
NSN4820-00-006-7909
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 146859-1 · 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
•
BEAD DIAMETER: 0.938 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.688 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPECIAL SHAPED
•
MATERIAL THICKNESS: 0.022 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 5
•
BOLT CIRCLE DIAMETER: 1.400 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYVINYL
•
HOLE DIAMETER: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BEAD DIAMETER0.938 INCHES NOMINAL IN
OUTSIDE DIAMETER1.688 INCHES NOMINAL IN
STYLE DESIGNATORSPECIAL SHAPED
MATERIAL THICKNESS0.022 INCHES NOMINAL IN
BOLT HOLE QUANTITY5
BOLT CIRCLE DIAMETER1.400 INCHES NOMINAL IN
MATERIALPLASTIC POLYVINYL
HOLE DIAMETER0.125 INCHES NOMINAL 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 146859-1?
146859-1 is a DIAPHRAGM,ACTUATOR VALVE,SPECIAL.
What is the NSN for 146859-1?
146859-1 is cataloged in the U.S. Government catalog under NSN 4820-00-006-7909. 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.