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1828AS121 — DISK,RUPTURABLE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1828AS121: DISK,RUPTURABLE.

The DISK,RUPTURABLE is a the manufacturer industrial component. Key specifications include disk_size: 0.500 INCHES IN, disk_type: SOLID, disk_material: COPPER ALLOY, burst_pressure: 800.0 PRESSURE POUNDS PER SQUARE INCH GAGE, special_features: DESIGNED FOR OXYGEN SERVICING UNIT A/U26U-1. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-398-5706, 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
1828AS121
NSN: 4820-01-398-5706
FSC: 4820 — Valves, Nonpowered
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
disk_size0.500 INCHES IN
disk_typeSOLID
disk_materialCOPPER ALLOY
burst_pressure800.0 PRESSURE POUNDS PER SQUARE INCH GAGE
special_featuresDESIGNED FOR OXYGEN SERVICING UNIT A/U26U-1
NSN4820-01-398-5706
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1828AS121 · 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: COPPER ALLOY
•
BURST PRESSURE: 800.0 PRESSURE POUNDS PER SQUARE INCH GAGE
•
DISK TYPE: SOLID
•
DISK SIZE: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
DISK MATERIALCOPPER ALLOY
BURST PRESSURE800.0 PRESSURE POUNDS PER SQUARE INCH GAGE
DISK TYPESOLID
SPECIAL FEATURESDESIGNED FOR OXYGEN SERVICING UNIT A/U26U-1
DISK SIZE0.500 INCHES IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
CD 12155Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1828AS121-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 1828AS121?
1828AS121 is a DISK,RUPTURABLE.
What parts can replace 1828AS121?
There are 2 known substitutes for 1828AS121: CD 12155, 1828AS121-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1828AS121?
1828AS121 is cataloged in the U.S. Government catalog under NSN 4820-01-398-5706. 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.