PartsTable
Technical Data Sheet

GF-1/2ZP — VALVE,EXPANSION

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

GF-1/2ZP: VALVE,EXPANSION.

The VALVE,EXPANSION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, body_style: STRAIGHT THRU, bulb_length: 3.500 INCHES NOMINAL IN, bulb_diameter: 0.500 INCHES NOMINAL IN, bulb_media_type: REFRIGERANT 500, flow_control_device: DIAPHRAGM. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-242-5345, 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
GF-1/2ZP
NSN: 4820-01-242-5345
FSC: 4820 — Valves, Nonpowered
CAGE: 78462 — PARKER-HANNIFIN CORP DIV SPORLAN DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
body_styleSTRAIGHT THRU
bulb_length3.500 INCHES NOMINAL IN
bulb_diameter0.500 INCHES NOMINAL IN
bulb_media_typeREFRIGERANT 500
flow_control_deviceDIAPHRAGM
first_end_thread_class2A A
end_connection_quantity2
second_end_thread_class2A A
media_for_which_designedREFRIGERANT 500
valve_equalizer_locationEXTERNAL
first_end_connection_typeTHREADED EXTERNAL TUBE
NSN4820-01-242-5345
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: GF-1/2ZP · 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
•
VALVE EQUALIZER LOCATION: EXTERNAL
•
SECOND END SEAT ANGLE IN DEG: 37.0
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
SECOND END THREAD CLASS: 2A A
•
BODY STYLE: STRAIGHT THRU
•
FIRST END SEAT ANGLE IN DEG: 37.0
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
VALVE EQUALIZER LOCATIONEXTERNAL
SECOND END SEAT ANGLE IN DEG37.0
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END THREAD CLASS2A A
BODY STYLESTRAIGHT THRU
FIRST END SEAT ANGLE IN DEG37.0
FIRST END THREAD CLASS2A A
FIRST END STYLE DESIGNATORFLARED
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

No substitute or cross-reference records for this part.

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 GF-1/2ZP?
GF-1/2ZP is a VALVE,EXPANSION.
What is the NSN for GF-1/2ZP?
GF-1/2ZP is cataloged in the U.S. Government catalog under NSN 4820-01-242-5345. 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.