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521FEBKVAA0300VS — VALVE,PRESSURE EQUALIZING,GASEOU

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

521FEBKVAA0300VS: VALVE,PRESSURE EQUALIZING,GASEOU.

VALVE,PRESSURE EQUALIZING,GASEOU. This part is cataloged in the U.S. Government catalog under NSN 4820-01-720-7580, 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
521FEBKVAA0300VS
NSN: 4820-01-720-7580
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number521FEBKVAA0300VS
NSN4820-01-720-7580
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 521FEBKVAA0300VS · 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
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 6
8758871-40VSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8758871Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
8758871-40Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
521FEBKVAA0300Reference document
Same NSN cross-reference
Reference document — Secondary reference
8758871 / FIND 40Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8758871 / FIND 40VSSame 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 521FEBKVAA0300VS?
521FEBKVAA0300VS is a VALVE,PRESSURE EQUALIZING,GASEOU.
What parts can replace 521FEBKVAA0300VS?
There are 6 known substitutes for 521FEBKVAA0300VS: 8758871-40VS, 8758871, 8758871-40 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 521FEBKVAA0300VS?
521FEBKVAA0300VS is cataloged in the U.S. Government catalog under NSN 4820-01-720-7580. This indicates validated use in U.S. government and defense supply chains.
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