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Technical Data Sheet
PartsTable / COMPONENT / 18191-P
18191-P ✓ 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 DISK,RUPTURABLE is a the manufacturer industrial component. Key specifications include cutter_type: SHEAR TYPE, cable_maximum_diameter_accommodated: 1.750 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-727-6760, 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
18191-P
NSN: 4820-01-727-6760
FSC: 4820
CAGE: 54905 — AMEREX CORPORATION DBA AMEREX CORP (USA)
SPECIFICATIONS
cutter_typeSHEAR TYPE
special_featuresRELEASE FEATURE IN ALL CUTTING POSITIONS; HANDLE LOCK IN CLOSED POSITION; PATENTED MOVEMENT AND CUTTING BLADE; SINGLE HANDED OPERATION
cable_maximum_diameter_accommodated1.750 INCHES IN
NSN4820-01-727-6760
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18191-P · 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 8
18191Interchangeable
interchangeable cross-reference
interchangeable
278-2138-010Interchangeable
interchangeable cross-reference
interchangeable
MD550-01Interchangeable
interchangeable cross-reference
interchangeable
A-A-55456Interchangeable
interchangeable cross-reference
interchangeable
DC05111100234Interchangeable
interchangeable cross-reference
interchangeable
KT45Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18191-P?
18191-P is a DISK,RUPTURABLE.
What parts can replace 18191-P?
There are 8 known substitutes for 18191-P: 18191, 278-2138-010, MD550-01 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18191-P?
18191-P is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-727-6760. 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