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Technical Data Sheet
PartsTable / COMPONENT / NM1221-1
NM1221-1 ✓ 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 COUPLING,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: CORROSION RESISTING STEEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-190-3624, 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
NM1221-1
NSN: 4810-01-190-3624
FSC: 4810
CAGE: 8FGX3 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCORROSION RESISTING STEEL
NSN4810-01-190-3624
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NM1221-1 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CORROSION RESISTING STEEL
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCORROSION RESISTING STEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
445MDP1Interchangeable
interchangeable cross-reference
interchangeable
572029Interchangeable
interchangeable cross-reference
interchangeable
73695Interchangeable
interchangeable cross-reference
interchangeable
NM1224-1Interchangeable
interchangeable cross-reference
interchangeable
NK3172-1Interchangeable
interchangeable cross-reference
interchangeable
PDL73405ITEM267Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NM1221-1?
NM1221-1 is a COUPLING,VALVE.
What parts can replace NM1221-1?
There are 20 known substitutes for NM1221-1: 445MDP1, 572029, 73695 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NM1221-1?
NM1221-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-190-3624. 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