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73423A — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

73423A: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410, seat_radius: 0.250 INCHES NOMINAL IN, thread_class: 2A A, overall_height: 1.469 INCHES NOMINAL IN, overall_length: 15.750 INCHES NOMINAL IN, shoulder_width: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-107-2164, 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
73423A
NSN: 4820-01-107-2164
NIINs: 011072164, 011114858
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 410
seat_radius0.250 INCHES NOMINAL IN
thread_class2A A
overall_height1.469 INCHES NOMINAL IN
overall_length15.750 INCHES NOMINAL IN
shoulder_width0.312 INCHES NOMINAL IN
shoulder_height0.719 INCHES NOMINAL IN
outside_diameter3.210 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size1.750 INCHES IN
largest_outside_diameter1.375 INCHES NOMINAL IN
thread_quantity_per_inch12
NSN4820-01-107-2164
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 73423A · 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
•
SHOULDER WIDTH: 0.312 INCHES NOMINAL IN
•
SHOULDER HEIGHT: 0.719 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.210 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLUG
•
NOMINAL THREAD SIZE: 1.750 INCHES IN
•
SEAT RADIUS: 0.250 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.469 INCHES NOMINAL IN
SHOULDER WIDTH0.312 INCHES NOMINAL IN
SHOULDER HEIGHT0.719 INCHES NOMINAL IN
OUTSIDE DIAMETER3.210 INCHES NOMINAL IN
STYLE DESIGNATORPLUG
NOMINAL THREAD SIZE1.750 INCHES IN
SEAT RADIUS0.250 INCHES NOMINAL IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH12
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
73423A PIECE4 3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
7532-4-31Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 73423A?
73423A is a DISK,VALVE.
What parts can replace 73423A?
There are 2 known substitutes for 73423A: 73423A PIECE4 3, 7532-4-31. Substitute compatibility should be verified for your specific system.
What is the NSN for 73423A?
73423A is cataloged in the U.S. Government catalog under NSN 4820-01-107-2164. 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.