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Technical Data Sheet

D559A3M2 — Technical Data Sheet

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— · 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 VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 BODY, bonnet_type: INSIDE SCREW, connection_style: PLAIN (PIPE) FIRST END, style_designator: STRAIGHT THRU W/BAFFLE, thread_direction: RIGHT-HAND FIRST END, surface_treatment: ANODIZE LOCATION NOT OTHERWISE SPECIFIED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-00-001-0037, 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
D559A3M2
NSN: 4820-00-001-0037
FSC: 4820
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 BODY
bonnet_typeINSIDE SCREW
connection_stylePLAIN (PIPE) FIRST END
style_designatorSTRAIGHT THRU W/BAFFLE
thread_directionRIGHT-HAND FIRST END
surface_treatmentANODIZE LOCATION NOT OTHERWISE SPECIFIED
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.375 INCHES FIRST END IN
maximum_operating_temp280.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-00-001-0037
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D559A3M2 · 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
•
STYLE DESIGNATOR: STRAIGHT THRU W/BAFFLE
•
MEDIA FOR WHICH DESIGNED: AIR FIRST RESPONSE
•
OPENING PRESSURE SETTING: 2.0 POUNDS PER SQUARE INCH LBS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDHELIUM SECOND RESPONSE
OPENING PRESSURE SETTING2.0 POUNDS PER SQUARE INCH LBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
CONNECTION STYLEPLAIN (PIPE) FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON THIRD RESPONSE
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
D10004-42Same_fscGOVERNMENT REGISTRY
same_fsc cross-reference
same_fsc
8171B1-4HS2Same_fscGOVERNMENT REGISTRY
same_fsc cross-reference
same_fsc
8171E-1/4HS2Same_fscGOVERNMENT REGISTRY
same_fsc cross-reference
same_fsc
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D559A3M2?
D559A3M2 is a VALVE,SAFETY RELIEF.
What parts can replace D559A3M2?
There are 3 known substitutes for D559A3M2: D10004-42, 8171B1-4HS2, 8171E-1/4HS2. Substitute compatibility should be verified for your specific system.
What is the NSN for D559A3M2?
D559A3M2 is cataloged in the Federal Logistics Information System under NSN 4820-00-001-0037. This indicates validated use in U.S. government and defense supply chains.
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