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Technical Data Sheet
PartsTable / COMPONENT / TY1,CL300,SZ1.5IN
TY1,CL300,SZ1.5IN ✓ 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 TY1,CL300,SZ1.5IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-541-0366, 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
TY1,CL300,SZ1.5IN
NSN: 4820-00-541-0366
FSC: 4820
CAGE: 59646 — MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC (USA)
SPECIFICATIONS
Part NumberTY1,CL300,SZ1.5IN
NSN4820-00-541-0366
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: TY1,CL300,SZ1.5IN · 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
•
MEDIA FOR WHICH DESIGNED: AIR FIRST RESPONSE
•
FLOW CONTROL DEVICE: DISK
•
RENEWABLE SEAT RING TYPE: THREADED
•
BONNET TYPE: INSIDE SCREW
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
MATERIAL: STEEL FLOW CONTROL DEVICE
•
MAXIMUM OPERATING TEMP: 425.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
FLOW CONTROL DEVICEDISK
RENEWABLE SEAT RING TYPETHREADED
BONNET TYPEINSIDE SCREW
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOYD4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
MATERIALSTEEL FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT SINGLE RESPONSE DEGF
VALVE OPERATION METHODMANUAL
BONNET ATTACHMENT METHODUNION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MIL-V-1187Interchangeable
interchangeable cross-reference
interchangeable
MSS SP-80Interchangeable
interchangeable cross-reference
interchangeable
803Interchangeable
interchangeable cross-reference
interchangeable
214CInterchangeable
interchangeable cross-reference
interchangeable
MIL-V-1187B TYIInterchangeable
interchangeable cross-reference
interchangeable
4592Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TY1,CL300,SZ1.5IN?
TY1,CL300,SZ1.5IN is a TY1,CL300,SZ1.5IN.
What parts can replace TY1,CL300,SZ1.5IN?
There are 12 known substitutes for TY1,CL300,SZ1.5IN: MIL-V-1187, MSS SP-80, 803 and 9 more. Substitute compatibility should be verified for your specific system.
Is TY1,CL300,SZ1.5IN still available?
TY1,CL300,SZ1.5IN 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