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A57220 — SEMICONDUCTOR DEVICE,DIODE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A57220: SEMICONDUCTOR DEVICE,DIODE.

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: RUBBER, special_features: ASSFC MODEL FCH-63, end_item_identification: CONVERTER, FREQUENCY DG-0218-01, part_name_assigned_by_controlling_agency: SCR DIODE MODULE. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-231-5915, 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
A57220
NSN: 4820-00-231-5915
NIINs: 002315915, 015461718
FSC: 4820 — Valves, Nonpowered
CAGE: 32869 — O. C. KECKLEY COMPANY (USA)
SPECIFICATIONS
materialRUBBER
special_featuresASSFC MODEL FCH-63
end_item_identificationCONVERTER, FREQUENCY DG-0218-01
part_name_assigned_by_controlling_agencySCR DIODE MODULE
NSN4820-00-231-5915
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A57220 · 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
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MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 A57220?
A57220 is a SEMICONDUCTOR DEVICE,DIODE.
What is the NSN for A57220?
A57220 is cataloged in the U.S. Government catalog under NSN 4820-00-231-5915. This indicates validated use in U.S. government and defense supply chains.
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