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CV666C — VALVE,POSITIVE CRANKCASE VENTILA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

CV666C: VALVE,POSITIVE CRANKCASE VENTILA.

VALVE,POSITIVE CRANKCASE VENTILA. Key specifications include design_form: STRAIGHT, body_material: PLASTIC, connection_type: UNTHREADED EXTERNAL HOSE, PLAIN, vehicle_year(s): 1976, vehicle_design_control_activity: 23040, vehicle_identification_designator: FORD PICK-UP F100. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-623-9824, 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
CV666C
NSN: 4820-00-623-9824
FSC: 4820 — Valves, Nonpowered
CAGE: 70040 — GENERAL MOTORS LLC DBA GENERAL MOTORS (USA)
SPECIFICATIONS
design_formSTRAIGHT
body_materialPLASTIC
connection_typeUNTHREADED EXTERNAL HOSE, PLAIN
vehicle_year(s)1976
vehicle_design_control_activity23040
vehicle_identification_designatorFORD PICK-UP F100
NSN4820-00-623-9824
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: CV666C · 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
SUBSTITUTES & CROSS-REFERENCES 5
24156Reference document
Same NSN cross-reference
Reference document — Secondary reference
CV733CReference document
Same NSN cross-reference
Reference document — Secondary reference
C5AE6A666AReference document
Same NSN cross-reference
Reference document — Secondary reference
EV50Reference document
Same NSN cross-reference
Reference document — Secondary reference
CV754CReference 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 CV666C?
CV666C is a VALVE,POSITIVE CRANKCASE VENTILA.
What parts can replace CV666C?
There are 5 known substitutes for CV666C: 24156, CV733C, C5AE6A666A and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CV666C?
CV666C is cataloged in the U.S. Government catalog under NSN 4820-00-623-9824. 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.