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2791 TYB 3/4IN — Technical Data Sheet

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— · 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

VALVE,REGULATING,FLUID PRESSURE. Key specifications include width: 2.5 INCHES NOMINAL IN, material: PLASTIC VINYL AND PLASTIC POLYAMIDE NYLON OVERALL, inside_depth: 30.000 INCHES NOMINAL IN, inside_width: 30.000 INCHES NOMINAL IN, usage_design: WEATHER RESISTANT, assembly_form: FOLDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-440-9342, 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
2791 TYB 3/4IN
NSN: 4820-01-440-9342
FSC: 4820
CAGE: 71342 — IMI CASH VALVE INC (USA)
SPECIFICATIONS
width2.5 INCHES NOMINAL IN
materialPLASTIC VINYL AND PLASTIC POLYAMIDE NYLON OVERALL
inside_depth30.000 INCHES NOMINAL IN
inside_width30.000 INCHES NOMINAL IN
usage_designWEATHER RESISTANT
assembly_formFOLDED
inside_length30.000 INCHES NOMINAL IN
closure_methodFLAPS
cubic_capacity15.7 CUBIC FEET
exterior_colorNATURAL
interior_colorNATURAL
overall_length14.5 INCHES NOMINAL IN
NSN4820-01-440-9342
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2791 TYB 3/4IN · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2791InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2791-RSCInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
PPP-B-640InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AUTOLET PLATFORMSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AUTOLET PLATFORMInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
89-4-17-56 FSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2791 TYB 3/4IN?
2791 TYB 3/4IN is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 2791 TYB 3/4IN?
There are 10 known substitutes for 2791 TYB 3/4IN: 2791, 2791-RSC, PPP-B-640 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2791 TYB 3/4IN?
2791 TYB 3/4IN is cataloged in the Federal Logistics Information System under NSN 4820-01-440-9342. 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: October 2026