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Technical Data Sheet
PartsTable / COMPONENT / 1/2NA3-126RCS
1/2NA3-126RCS ✓ 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 1/2NA3-126RCS 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 4820-01-187-6354, 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
1/2NA3-126RCS
NSN: 4820-01-187-6354
FSC: 4820
CAGE: 85578 — MARK CONTROLS CORP PACIFIC VALVES DIV (USA)
SPECIFICATIONS
Part Number1/2NA3-126RCS
NSN4820-01-187-6354
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1/2NA3-126RCS · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
9052-1Interchangeable
interchangeable cross-reference
interchangeable
9052Interchangeable
interchangeable cross-reference
interchangeable
H9052Interchangeable
interchangeable cross-reference
interchangeable
B9AF15520AInterchangeable
interchangeable cross-reference
interchangeable
5306Q5A7Interchangeable
interchangeable cross-reference
interchangeable
S1449648Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/2NA3-126RCS?
1/2NA3-126RCS is a 1/2NA3-126RCS.
What parts can replace 1/2NA3-126RCS?
There are 13 known substitutes for 1/2NA3-126RCS: 9052-1, 9052, H9052 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/2NA3-126RCS?
1/2NA3-126RCS is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-187-6354. 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