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Technical Data Sheet
PartsTable / COMPONENT / NMP611 OP A, DISC AY, FW SERVICE
NMP611 OP A, DISC AY, FW SERVICE ✓ 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 NMP611 OP A, DISC AY, FW SERVICE 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 4820-01-538-2850, 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
NMP611 OP A, DISC AY, FW SERVICE
NSN: 4820-01-538-2850
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
Part NumberNMP611 OP A, DISC AY, FW SERVICE
NSN4820-01-538-2850
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NMP611 OP A, DISC AY, FW SERVICE · 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
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: ANGLE FLANGED ENDS
•
SECOND CONNECTION FACE TO CENTERLINE DISTANCE: 5.500 INCHES IN
•
BOLT CIRCLE NOMINAL DIAMETER: 6.062 INCHES ALL ENDS IN
•
MATERIAL: COPPER ALLOY STEM
•
SPECIFICATION/STANDARD DATA: 81349 - MIL-V-20065C GOVERNMENT SPECIFICATION
•
DEPARTURE FROM CITED DOCUMENT: RELIEF VALVE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORANGLE FLANGED ENDS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE5.500 INCHES IN
BOLT CIRCLE NOMINAL DIAMETER6.062 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY STEM
END ITEM IDENTIFICATIONW/S CVN NR BOUNDARY AREA
SPECIFICATION/STANDARD DATA81349 - MIL-V-20065C GOVERNMENT SPECIFICATION
DEPARTURE FROM CITED DOCUMENTRELIEF VALVE
SPECIAL FEATURESFLANGES IAW MIL-F-20042, 150 LB. LBS
FLANGE FACE DESIGNPLAIN ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
NMP611PC12Interchangeable
interchangeable cross-reference
interchangeable
NMP-611Interchangeable
interchangeable cross-reference
interchangeable
0041040038Interchangeable
interchangeable cross-reference
interchangeable
NMP-611 PC19Interchangeable
interchangeable cross-reference
interchangeable
012.500.0010Interchangeable
interchangeable cross-reference
interchangeable
MIL-V-20065Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NMP611 OP A, DISC AY, FW SERVICE?
NMP611 OP A, DISC AY, FW SERVICE is a NMP611 OP A, DISC AY, FW SERVICE.
What parts can replace NMP611 OP A, DISC AY, FW SERVICE?
There are 7 known substitutes for NMP611 OP A, DISC AY, FW SERVICE: NMP611PC12, NMP-611, 0041040038 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NMP611 OP A, DISC AY, FW SERVICE?
NMP611 OP A, DISC AY, FW SERVICE is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-538-2850. 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