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Technical Data Sheet
PartsTable / COMPONENT / MSS-SP80 TY2,CL125,SZ1IN
MSS-SP80 TY2,CL125,SZ1IN ✓ 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 TY2,CL125,SZ1IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-109-3159, 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 TY2,CL125,SZ1IN
NSN: 4820-01-109-3159
FSC: 4820
CAGE: 59646 — MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC (USA)
SPECIFICATIONS
Part NumberMSS-SP80 TY2,CL125,SZ1IN
NSN4820-01-109-3159
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MSS-SP80 TY2,CL125,SZ1IN · 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
•
MATERIAL: COPPER ALLOY BODY
•
NOMINAL THREAD SIZE: 1.000 INCHES ALL ENDS IN
•
VALVE OPERATION METHOD: MANUAL
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
BONNET ATTACHMENT METHOD: THREADED
•
FURNISHED ITEMS AND QUANTITY: 1 HANDWHEEL
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS IN
VALVE OPERATION METHODMANUAL
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
BONNET ATTACHMENT METHODTHREADED
FURNISHED ITEMS AND QUANTITY1 HANDWHEEL
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
BONNET TYPEINSIDE SCREW
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
9001Interchangeable
interchangeable cross-reference
interchangeable
MS15699-1Interchangeable
interchangeable cross-reference
interchangeable
D-734Interchangeable
interchangeable cross-reference
interchangeable
4666Interchangeable
interchangeable cross-reference
interchangeable
40451Interchangeable
interchangeable cross-reference
interchangeable
00289-0030Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MSS-SP80 TY2,CL125,SZ1IN?
MSS-SP80 TY2,CL125,SZ1IN is a MSS-SP80 TY2,CL125,SZ1IN.
What parts can replace MSS-SP80 TY2,CL125,SZ1IN?
There are 8 known substitutes for MSS-SP80 TY2,CL125,SZ1IN: 9001, MS15699-1, D-734 and 5 more. Substitute compatibility should be verified for your specific system.
Is MSS-SP80 TY2,CL125,SZ1IN still available?
MSS-SP80 TY2,CL125,SZ1IN 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