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Technical Data Sheet
PartsTable / COMPONENT / MSS SP80 TY1,CL125,SZ3/4IN
MSS SP80 TY1,CL125,SZ3/4IN ✓ 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 MSS SP80 TY1,CL125,SZ3/4IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-5999, 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
MSS SP80 TY1,CL125,SZ3/4IN
NSN: 4820-00-287-5999
FSC: 4820
CAGE: 59646 — MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC (USA)
SPECIFICATIONS
Part NumberMSS SP80 TY1,CL125,SZ3/4IN
NSN4820-00-287-5999
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MSS SP80 TY1,CL125,SZ3/4IN · 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
•
FLOW CONTROL DEVICE: DISK
•
MAXIMUM OPERATING TEMP: 406.0 FAHRENHEIT FIRST RESPONSE DEGF
•
THREAD QUANTITY PER INCH: 14 ALL ENDS
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING TEMP406.0 FAHRENHEIT FIRST RESPONSE DEGF
THREAD QUANTITY PER INCH14 ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VALVE OPERATION METHODAUTOMATIC
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
S8157N278-063Interchangeable
interchangeable cross-reference
interchangeable
3454-SS-062Interchangeable
interchangeable cross-reference
interchangeable
B3-16Interchangeable
interchangeable cross-reference
interchangeable
0607Interchangeable
interchangeable cross-reference
interchangeable
3734Interchangeable
interchangeable cross-reference
interchangeable
GS570CT2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MSS SP80 TY1,CL125,SZ3/4IN?
MSS SP80 TY1,CL125,SZ3/4IN is a MSS SP80 TY1,CL125,SZ3/4IN.
What parts can replace MSS SP80 TY1,CL125,SZ3/4IN?
There are 29 known substitutes for MSS SP80 TY1,CL125,SZ3/4IN: S8157N278-063, 3454-SS-062, B3-16 and 26 more. Substitute compatibility should be verified for your specific system.
Is MSS SP80 TY1,CL125,SZ3/4IN still available?
MSS SP80 TY1,CL125,SZ3/4IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026