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PartsTable / COMPONENT / A1828AND1826ANDA1921
A1828AND1826ANDA1921 ✓ 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 ASSEMBLY is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-084-3599, 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
A1828AND1826ANDA1921
NSN: 4820-01-084-3599
FSC: 4820
CAGE: 17062 — P J VALVES INC (USA)
SPECIFICATIONS
Part NumberA1828AND1826ANDA1921
NSN4820-01-084-3599
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A1828AND1826ANDA1921 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF 1 DISC NICKEL COPPER QQ-N-281 CLASS A; DISC TO BE STELLITED; STELLITE NO. 6 ACCEPTABLE; 1 DISC NUT NICKEL COPPER QQ-N-281 CLASS A; SPRAY THREADS AT ASSEMBLY; 1 DISC INSERT STELLITE NO. 6B; FOR 1.500 IN. 1500 LB GLOBE VALVE LBS
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF 1 DISC NICKEL COPPER QQ-N-281 CLASS A; DISC TO BE STELLITED; STELLITE NO. 6 ACCEPTABLE; 1 DISC NUT NICKEL COPPER QQ-N-281 CLASS A; SPRAY THREADS AT ASSEMBLY; 1 DISC INSERT STELLITE NO. 6B; FOR 1.500 IN. 1500 LB GLOBE VALVE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MILV17737 TYPEInterchangeable
interchangeable cross-reference
interchangeable
D1829-1 1-2IN GInterchangeable
interchangeable cross-reference
interchangeable
D1829-1 1-2INGLBSTP CHKInterchangeable
interchangeable cross-reference
interchangeable
D1829PC3Interchangeable
interchangeable cross-reference
interchangeable
D1829Interchangeable
interchangeable cross-reference
interchangeable
B1824Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1828AND1826ANDA1921?
A1828AND1826ANDA1921 is a DISK ASSEMBLY.
What parts can replace A1828AND1826ANDA1921?
There are 8 known substitutes for A1828AND1826ANDA1921: MILV17737 TYPE, D1829-1 1-2IN G, D1829-1 1-2INGLBSTP CHK and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1828AND1826ANDA1921?
A1828AND1826ANDA1921 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-084-3599. 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