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78335A22 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

78335A22: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include special_features: WITH FLASHBACK ARRESTOR, style_designator: STRAIGHT THRU, mounting_position: VERTICAL, operating_pressure: 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: AUTOMATIC, media_for_which_designed: ACETYLENE SINGLE RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-363-7338, 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
78335A22
NSN: 4820-01-363-7338
FSC: 4820 — Valves, Nonpowered
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
special_featuresWITH FLASHBACK ARRESTOR
style_designatorSTRAIGHT THRU
mounting_positionVERTICAL
operating_pressure15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodAUTOMATIC
media_for_which_designedACETYLENE SINGLE RESPONSE
NSN4820-01-363-7338
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 78335A22 · 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
•
MOUNTING POSITION: VERTICAL
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: ACETYLENE SINGLE RESPONSE
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
MOUNTING POSITIONVERTICAL
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SPECIAL FEATURESWITH FLASHBACK ARRESTOR
MEDIA FOR WHICH DESIGNEDACETYLENE SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
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 1
78335A32Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 78335A22?
78335A22 is a VALVE,CHECK.
What parts can replace 78335A22?
There is 1 known substitute for 78335A22: 78335A32. Substitute compatibility should be verified for your specific system.
What is the NSN for 78335A22?
78335A22 is cataloged in the U.S. Government catalog under NSN 4820-01-363-7338. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.