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52CHQ3-1-2 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

52CHQ3-1-2: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316, special_features: BLOW OUT PROOF STEM, end_item_identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS, valve_size_for_which_designed: 4.000 INCHES IN, valve_type_for_which_designed: BUTTERFLY, material_document_and_classification: ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-433-4427, 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
52CHQ3-1-2
NSN: 4820-01-433-4427
FSC: 4820 — Valves, Nonpowered
CAGE: 76588 — CORE INDUSTRIES INC. DBA MUELLER STEAM SPECIALTY (USA)
SPECIFICATIONS
materialSTEEL COMP 316
special_featuresBLOW OUT PROOF STEM
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
valve_size_for_which_designed4.000 INCHES IN
valve_type_for_which_designedBUTTERFLY
material_document_and_classificationASTMA276 ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-433-4427
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 52CHQ3-1-2 · 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
•
VALVE TYPE FOR WHICH DESIGNED: BUTTERFLY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 4.000 INCHES IN
•
MATERIAL: STEEL COMP 316
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDBUTTERFLY
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA276 ASSN STD SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED4.000 INCHES IN
SPECIAL FEATURESBLOW OUT PROOF STEM
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
MATERIALSTEEL COMP 316
SUBSTITUTES & CROSS-REFERENCES 2
AN-4.0-52-YReference document
Same NSN cross-reference
Reference document — Drawing number reference only
AN-4.0-52-Y ITEM 2Same 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 52CHQ3-1-2?
52CHQ3-1-2 is a STEM,FLUID VALVE.
What parts can replace 52CHQ3-1-2?
There are 2 known substitutes for 52CHQ3-1-2: AN-4.0-52-Y, AN-4.0-52-Y ITEM 2. Substitute compatibility should be verified for your specific system.
What is the NSN for 52CHQ3-1-2?
52CHQ3-1-2 is cataloged in the U.S. Government catalog under NSN 4820-01-433-4427. 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.