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Technical Data Sheet
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993A53 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

993A53: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4810-00-410-8466, 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
993A53
NSN: 4810-00-410-8466
FSC: 4810 — Valves, Powered
CAGE: U4287 — ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED (GBR)
SPECIFICATIONS
Part Number993A53
NSN4810-00-410-8466
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 993A53 · 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
SUBSTITUTES & CROSS-REFERENCES 2
993-53Reference document
Same NSN cross-reference
Reference document — Secondary reference
21524819-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 993A53?
993A53 is a SEAT,VALVE.
What parts can replace 993A53?
There are 2 known substitutes for 993A53: 993-53, 21524819-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 993A53?
993A53 is cataloged in the U.S. Government catalog under NSN 4810-00-410-8466. This indicates validated use in U.S. government and defense supply chains.
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