Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW
The PRES REL SCR LOCK is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System 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
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
NSN
4820-01-187-6354
COMPONENT DIAGRAM
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
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
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FREQUENTLY ASKED QUESTIONS
What is 1/2NA3-126RCS?
1/2NA3-126RCS is a PRES REL SCR LOCK.
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 under NSN 4820-01-187-6354. This indicates validated use in U.S. government and defense supply chains.
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