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131789 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

131789: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 45.0 DEGREES NOMINAL, taper_length: 3.375 INCHES NOMINAL IN, style_designator: SOLID WEDGE, taper_major_diameter: 2.156 INCHES NOMINAL IN, taper_minor_diameter: 1.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-151-9016, 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
131789
NSN: 4820-01-151-9016
FSC: 4820 — Valves, Nonpowered
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
seat_angle45.0 DEGREES NOMINAL
taper_length3.375 INCHES NOMINAL IN
style_designatorSOLID WEDGE
taper_major_diameter2.156 INCHES NOMINAL IN
taper_minor_diameter1.562 INCHES NOMINAL IN
NSN4820-01-151-9016
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 131789 · 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
•
TAPER MINOR DIAMETER: 1.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID WEDGE
•
TAPER MAJOR DIAMETER: 2.156 INCHES NOMINAL IN
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
TAPER LENGTH: 3.375 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
TAPER MINOR DIAMETER1.562 INCHES NOMINAL IN
STYLE DESIGNATORSOLID WEDGE
TAPER MAJOR DIAMETER2.156 INCHES NOMINAL IN
SEAT ANGLE45.0 DEGREES NOMINAL
TAPER LENGTH3.375 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
057361 ITEM 26Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
057361Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 131789?
131789 is a DISK,VALVE.
What parts can replace 131789?
There are 2 known substitutes for 131789: 057361 ITEM 26, 057361. Substitute compatibility should be verified for your specific system.
What is the NSN for 131789?
131789 is cataloged in the U.S. Government catalog under NSN 4820-01-151-9016. 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.