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Technical Data Sheet
PartsTable / COMPONENT / 155-3/4 D2
155-3/4 D2 ✓ 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 155-3/4 D2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-373-3127, 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
155-3/4 D2
NSN: 4820-01-373-3127
FSC: 4820
CAGE: 86768 — TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT (USA)
SPECIFICATIONS
Part Number155-3/4 D2
NSN4820-01-373-3127
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 155-3/4 D2 · 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
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
MANUAL CONTROL METHOD: KNOB
•
TEMP RATING: 225.0 FAHRENHEIT MAXIMUM DEGF
•
REGULATION TYPE: MANUAL SINGLE STAGE
•
MATERIAL: STEEL STEM
•
BODY STYLE: ANGLE
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.750-14 NPT FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END THREAD DIRECTIONRIGHT-HAND
MANUAL CONTROL METHODKNOB
TEMP RATING225.0 FAHRENHEIT MAXIMUM DEGF
REGULATION TYPEMANUAL SINGLE STAGE
MATERIALSTEEL STEM
BODY STYLEANGLE
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.750-14 NPT FIRST END
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
FLOW CONTROL DEVICEPOPPET
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
63-0-5.00Interchangeable
interchangeable cross-reference
interchangeable
6303-5.00Interchangeable
interchangeable cross-reference
interchangeable
6303-5Interchangeable
interchangeable cross-reference
interchangeable
6303500Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 155-3/4 D2?
155-3/4 D2 is a 155-3/4 D2.
What parts can replace 155-3/4 D2?
There are 4 known substitutes for 155-3/4 D2: 63-0-5.00, 6303-5.00, 6303-5 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 155-3/4 D2?
155-3/4 D2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-373-3127. 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