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Technical Data Sheet
PartsTable / COMPONENT / NX99
NX99 ✓ 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 VALVE,BALL is a the manufacturer industrial component. Key specifications include end_item_identification: 6115-01-531-0571, 20KW GENERATOR SET, part_name_assigned_by_controlling_agency: 90 DEGREE BALL VALVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-549-7188, 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
NX99
NSN: 4810-01-549-7188
FSC: 4810
CAGE: 0SUA9 — GENERAC MOBILE PRODUCTS, LLC (USA)
SPECIFICATIONS
end_item_identification6115-01-531-0571, 20KW GENERATOR SET
part_name_assigned_by_controlling_agency90 DEGREE BALL VALVE
NSN4810-01-549-7188
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NX99 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION6115-01-531-0571, 20KW GENERATOR SET
PART NAME ASSIGNED BY CONTROLLING AGENCY90 DEGREE BALL VALVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
19280Interchangeable
interchangeable cross-reference
interchangeable
B19280Interchangeable
interchangeable cross-reference
interchangeable
51104Interchangeable
interchangeable cross-reference
interchangeable
B704Interchangeable
interchangeable cross-reference
interchangeable
88-21134Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NX99?
NX99 is a VALVE,BALL.
What parts can replace NX99?
There are 5 known substitutes for NX99: 19280, B19280, 51104 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NX99?
NX99 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-549-7188. 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