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Technical Data Sheet
PartsTable / COMPONENT / 5Y7146
5Y7146 ✓ 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

PARTS KIT,DIAPHRAGM REPLACEMENT. Key specifications include nonsupply_items_and_quantities: 06853 202595 DIAPHRAGM 1; 06853 202735 GASKET 1; 06853 211367 1. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-039-6572, 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
5Y7146
NSN: 4820-00-039-6572
FSC: 4820
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
component_quantity3
nonsupply_items_and_quantities06853 202595 DIAPHRAGM 1; 06853 202735 GASKET 1; 06853 211367 1
NSN4820-00-039-6572
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 5Y7146 · 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
•
NONSUPPLY ITEMS AND QUANTITIES: 06853 202595 DIAPHRAGM 1; 06853 202735 GASKET 1; 06853 211367 1
•
COMPONENT QUANTITY: 3
TECHNICAL CHARACTERISTICS (FLIS)
NONSUPPLY ITEMS AND QUANTITIES06853 202595 DIAPHRAGM 1; 06853 202735 GASKET 1; 06853 211367 1
COMPONENT QUANTITY3
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
APGN-666-9056-1Interchangeable
interchangeable cross-reference
interchangeable
408670Interchangeable
interchangeable cross-reference
interchangeable
691903Interchangeable
interchangeable cross-reference
interchangeable
280457Interchangeable
interchangeable cross-reference
interchangeable
21365Interchangeable
interchangeable cross-reference
interchangeable
221365Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5Y7146?
5Y7146 is a PARTS KIT,DIAPHRAGM REPLACEMENT.
What parts can replace 5Y7146?
There are 13 known substitutes for 5Y7146: APGN-666-9056-1, 408670, 691903 and 10 more. Substitute compatibility should be verified for your specific system.
Is 5Y7146 still available?
5Y7146 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