PartsTable
Technical Data Sheet

FV 1/4C — VALVE,EXPANSION

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

FV 1/4C: VALVE,EXPANSION.

The VALVE,EXPANSION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, body_style: STRAIGHT THRU, capillary_tube_length: 30.000 INCHES NOMINAL IN, media_for_which_designed: REFRIGERANT 22, valve_equalizer_location: EXTERNAL, valve_expansion_control_type: THERMOSTATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-429-5989, 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
FV 1/4C
NSN: 4820-01-429-5989
FSC: 4820 — Valves, Nonpowered
CAGE: 78462 — PARKER-HANNIFIN CORP DIV SPORLAN DIVISION (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
body_styleSTRAIGHT THRU
capillary_tube_length30.000 INCHES NOMINAL IN
end_connection_quantity2
media_for_which_designedREFRIGERANT 22
valve_equalizer_locationEXTERNAL
valve_expansion_control_typeTHERMOSTATIC
refrigeration_capacity_in_btu_per_hour3.0
second_end_relationship_with_first_endNOT IDENTICAL
NSN4820-01-429-5989
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: FV 1/4C · 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
•
VALVE EQUALIZER LOCATION: EXTERNAL
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
REFRIGERATION CAPACITY IN BTU PER HOUR: 3.0
•
END CONNECTION QUANTITY: 2
•
CAPILLARY TUBE LENGTH: 30.000 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY BODY
•
VALVE EXPANSION CONTROL TYPE: THERMOSTATIC
TECHNICAL CHARACTERISTICS
VALVE EQUALIZER LOCATIONEXTERNAL
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
BODY STYLESTRAIGHT THRU
REFRIGERATION CAPACITY IN BTU PER HOUR3.0
END CONNECTION QUANTITY2
CAPILLARY TUBE LENGTH30.000 INCHES NOMINAL IN
MATERIALCOPPER ALLOY BODY
VALVE EXPANSION CONTROL TYPETHERMOSTATIC
MEDIA FOR WHICH DESIGNEDREFRIGERANT 22
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
RWEV14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FV 1/4C?
FV 1/4C is a VALVE,EXPANSION.
What parts can replace FV 1/4C?
There is 1 known substitute for FV 1/4C: RWEV14. Substitute compatibility should be verified for your specific system.
What is the NSN for FV 1/4C?
FV 1/4C is cataloged in the U.S. Government catalog under NSN 4820-01-429-5989. 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.