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V30 — AIR ENTRY,RESPIRATOR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

V30: AIR ENTRY,RESPIRATOR.

The AIR ENTRY,RESPIRATOR is a the manufacturer industrial component. Key specifications include filter: NOT INCLUDED, material: COPPER ALLOY BODY, body_style: STRAIGHT THRU, regulation_type: AUTOMATIC SINGLE STAGE, special_features: VALVE SIZE 0.375 IN. IN, flow_control_device: DISK.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-184-4300, 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
V30
NSN: 4820-01-184-4300
NIINs: 011844300, 012151578, 012509126, 014081588
FSC: 4820 — Valves, Nonpowered
CAGE: 34889 — HUNT VALVE COMPANY INC DBA UNION FLONETICS (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialCOPPER ALLOY BODY
body_styleSTRAIGHT THRU
regulation_typeAUTOMATIC SINGLE STAGE
special_featuresVALVE SIZE 0.375 IN. IN
flow_control_deviceDISK
valve_loading_methodDOME
end_connection_quantity2
end_item_identificationE. D. BULLARD MODEL 20-T HOOD SUPPLIED-AIR RESPIRATORS
media_for_which_designedAIR
first_end_connection_typeUNTHREADED INTERNAL TUBE
first_end_style_designatorSTREAMLINED WITH ONE BRAZING RING
NSN4820-01-184-4300
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: V30 · 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
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: AUTOMATIC SINGLE STAGE
•
FIRST END STYLE DESIGNATOR: SOCKET
•
SECOND END NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES IN
•
END CONNECTION QUANTITY: 2
•
VALVE LOADING METHOD: DOME
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
BODY STYLESTRAIGHT THRU
REGULATION TYPEAUTOMATIC SINGLE STAGE
FIRST END STYLE DESIGNATORSOCKET
SECOND END NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES IN
END CONNECTION QUANTITY2
VALVE LOADING METHODDOME
SECOND END STYLE DESIGNATORSOCKET
FIRST END CONNECTION TYPEUNTHREADED INTERNAL PIPE
SUBSTITUTES & CROSS-REFERENCES 1
V30 PART V30B4B7VReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is V30?
V30 is a AIR ENTRY,RESPIRATOR.
What parts can replace V30?
There is 1 known substitute for V30: V30 PART V30B4B7V. Substitute compatibility should be verified for your specific system.
What is the NSN for V30?
V30 is cataloged in the U.S. Government catalog under NSN 4820-01-184-4300. 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.