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2401-443 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2401-443: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, body_material: STEEL UNS J03002, connection_type: FLANGE, ROUND W/HOLES, valve_operation_method: MANUAL, stem_actuating_end_type: THREADED EXTERNALLY, valve_size_for_which_designed: 4.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-162-4397, 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
2401-443
NSN: 4820-01-162-4397
NIINs: 011624397, 011626551, 011756510
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialNICKEL ALLOY
body_materialSTEEL UNS J03002
valve_quantity5
connection_typeFLANGE, ROUND W/HOLES
valve_operation_methodMANUAL
stem_actuating_end_typeTHREADED EXTERNALLY
valve_size_for_which_designed4.000 INCHES IN
valve_type_for_which_designedLIFT-CHECK
material_document_and_classificationQQ-N-286, CLASS HF OR AH FED SPEC SINGLE MATERIAL RESPONSE
NSN4820-01-162-4397
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2401-443 · 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
•
VALVE QUANTITY: 5
•
CONNECTION TYPE: FLANGE, ROUND W/HOLES
•
BODY MATERIAL: STEEL UNS J03002
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
VALVE QUANTITY5
CONNECTION TYPEFLANGE, ROUND W/HOLES
BODY MATERIALSTEEL UNS J03002
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 2
506-5588397Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
2401-443 ASSY 99Reference 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 2401-443?
2401-443 is a DISK,VALVE.
What parts can replace 2401-443?
There are 2 known substitutes for 2401-443: 506-5588397, 2401-443 ASSY 99. Substitute compatibility should be verified for your specific system.
What is the NSN for 2401-443?
2401-443 is cataloged in the U.S. Government catalog under NSN 4820-01-162-4397. 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.