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PartsTable / COMPONENT / D559A-2M-10
D559A-2M-10 ✓ 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

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include material: STEEL COMP D4 SEAT, overall_height: 0.427 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN, style_designator: PLAIN, seat_angle_in_deg: 30.000 NOMINAL, body_inside_diameter: 1.766 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN, body_outside_diameter: 2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-567-7580, 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
D559A-2M-10
NSN: 4820-01-567-7580
FSC: 4820
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialSTEEL COMP D4 SEAT
overall_height0.427 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN
style_designatorPLAIN
seat_angle_in_deg30.000 NOMINAL
body_inside_diameter1.766 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN
body_outside_diameter2.003 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
end_item_identification2815-01-178-5461
NSN4820-01-567-7580
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D559A-2M-10 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
212940Interchangeable
interchangeable cross-reference
interchangeable
A60975-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D559A-2M-10?
D559A-2M-10 is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace D559A-2M-10?
There are 2 known substitutes for D559A-2M-10: 212940, A60975-5. Substitute compatibility should be verified for your specific system.
What is the NSN for D559A-2M-10?
D559A-2M-10 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-567-7580. 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