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1602AS239-1 — HEAD AND DISK,SAFETY,PRESSURE RE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1602AS239-1: HEAD AND DISK,SAFETY,PRESSURE RE.

HEAD AND DISK,SAFETY,PRESSURE RE. Key specifications include disk_type: REVERSE BUCKLING, head_type: UNION, disk_material: STEEL CORROSION RESISTING, head_material: STEEL CORROSION RESISTING, burst_pressure: 125.0 PRESSURE POUNDS PER SQUARE INCH GAGE AND 140.0 PRESSURE POUNDS PER SQUARE INCH GAGE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-424-9876, 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
1602AS239-1
NSN: 4820-01-424-9876
FSC: 4820 — Valves, Nonpowered
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
disk_typeREVERSE BUCKLING
head_typeUNION
disk_materialSTEEL CORROSION RESISTING
head_materialSTEEL CORROSION RESISTING
burst_pressure125.0 PRESSURE POUNDS PER SQUARE INCH GAGE AND 140.0 PRESSURE POUNDS PER SQUARE INCH GAGE
NSN4820-01-424-9876
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1602AS239-1 · 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
•
DISK MATERIAL: STEEL CORROSION RESISTING
•
BURST PRESSURE: 125.0 PRESSURE POUNDS PER SQUARE INCH GAGE AND 140.0 PRESSURE POUNDS PER SQUARE INCH GAGE
•
HEAD TYPE: UNION
•
DISK TYPE: REVERSE BUCKLING
•
HEAD MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
DISK MATERIALSTEEL CORROSION RESISTING
BURST PRESSURE125.0 PRESSURE POUNDS PER SQUARE INCH GAGE AND 140.0 PRESSURE POUNDS PER SQUARE INCH GAGE
HEAD TYPEUNION
DISK TYPEREVERSE BUCKLING
HEAD MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 1
1602AS239Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1602AS239-1?
1602AS239-1 is a HEAD AND DISK,SAFETY,PRESSURE RE.
What parts can replace 1602AS239-1?
There is 1 known substitute for 1602AS239-1: 1602AS239. Substitute compatibility should be verified for your specific system.
What is the NSN for 1602AS239-1?
1602AS239-1 is cataloged in the U.S. Government catalog under NSN 4820-01-424-9876. 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.