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12438489 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The DISK,RUPTURABLE is a the manufacturer industrial component. Key specifications include disk_material: COPPER ALLOY AND NICKEL ALLOY, burst_pressure: 500.0 VACUUM POUNDS PER SQUARE INCH GAGE, cross-sectional_shape: FLAT, end_item_identification: M1A2 COOLING INSTALLATION SEP TANK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-520-4084, 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
12438489
NSN: 4820-01-520-4084
FSC: 4820
CAGE: 01417 — GENERAL DYNAMICS LAND SYSTEMS INC. (USA)
SPECIFICATIONS
disk_materialCOPPER ALLOY AND NICKEL ALLOY
burst_pressure500.0 VACUUM POUNDS PER SQUARE INCH GAGE
cross-sectional_shapeFLAT
end_item_identificationM1A2 COOLING INSTALLATION SEP TANK
NSN4820-01-520-4084
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 12438489 · 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
•
CROSS-SECTIONAL SHAPE: FLAT
•
BURST PRESSURE: 500.0 VACUUM POUNDS PER SQUARE INCH GAGE
•
DISK MATERIAL: COPPER ALLOY AND NICKEL ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPEFLAT
BURST PRESSURE500.0 VACUUM POUNDS PER SQUARE INCH GAGE
END ITEM IDENTIFICATIONM1A2 COOLING INSTALLATION SEP TANK
DISK MATERIALCOPPER ALLOY AND NICKEL ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
KT0-5Interchangeable
interchangeable cross-reference
interchangeable
532291-1Interchangeable
interchangeable cross-reference
interchangeable
532281-1Interchangeable
interchangeable cross-reference
interchangeable
T05Interchangeable
interchangeable cross-reference
interchangeable
BK-3Interchangeable
interchangeable cross-reference
interchangeable
158-0236-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12438489?
12438489 is a DISK,RUPTURABLE.
What parts can replace 12438489?
There are 12 known substitutes for 12438489: KT0-5, 532291-1, 532281-1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12438489?
12438489 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-520-4084. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026