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Technical Data Sheet
PartsTable / COMPONENT / 3/4-11-1100TT
3/4-11-1100TT ✓ 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 3/4-11-1100TT is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-052-4649, 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
3/4-11-1100TT
NSN: 4820-00-052-4649
FSC: 4820
CAGE: 01295 — TEXAS INSTRUMENTS INCORPORATED (USA)
SPECIFICATIONS
Part Number3/4-11-1100TT
NSN4820-00-052-4649
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3/4-11-1100TT · 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: FUEL/OIL, HYDROCARBON FIRST RESPONSE
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MATERIAL: COPPER BODY
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON FIRST RESPONSE
STYLE DESIGNATORSTRAIGHT THRU
MATERIALCOPPER BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MATERIALCOPPER FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNEDSTEAM SECOND RESPONSE
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND A CLASS AND 3 STYLE
MEDIA FOR WHICH DESIGNEDWATER, FRESH THIRD RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
34351Interchangeable
interchangeable cross-reference
interchangeable
LN-STYLE-150 COMBInterchangeable
interchangeable cross-reference
interchangeable
225-LN-COMBInterchangeable
interchangeable cross-reference
interchangeable
2201AInterchangeable
interchangeable cross-reference
interchangeable
256124Interchangeable
interchangeable cross-reference
interchangeable
256124M1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3/4-11-1100TT?
3/4-11-1100TT is a 3/4-11-1100TT.
What parts can replace 3/4-11-1100TT?
There are 24 known substitutes for 3/4-11-1100TT: 34351, LN-STYLE-150 COMB, 225-LN-COMB and 21 more. Substitute compatibility should be verified for your specific system.
Is 3/4-11-1100TT still available?
3/4-11-1100TT 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