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V21-7 — VALVE,POSITIVE CRANKCASE VENTILA

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

V21-7: VALVE,POSITIVE CRANKCASE VENTILA.

VALVE,POSITIVE CRANKCASE VENTILA. Key specifications include design_form: STRAIGHT, overall_length: 2.406 INCHES NOMINAL IN, vehicle_year(s): 1983, unable_to_decode: UNABLE TO DECODE, vehicle_design_control_activity: 11862, vehicle_identification_designator: CHEVROLET. This part is cataloged in the U.S.

Government catalog under NSN 3439-01-087-2357, 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
V21-7
NSN: 3439-01-087-2357
NIINs: 010872357, 012184680
FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
CAGE: 61924 — VANIER MANUFACTURING INC (USA)
SPECIFICATIONS
design_formSTRAIGHT
overall_length2.406 INCHES NOMINAL IN
vehicle_year(s)1983
unable_to_decodeUNABLE TO DECODE
vehicle_design_control_activity11862
vehicle_identification_designatorCHEVROLET
NSN3439-01-087-2357
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,POSITIVE CRANKCASE VENTILA TITLE COMPONENT PN V21-7 MFR VALVE,POSITIVE CRANKCA
KEY FEATURES
•
UNABLE TO DECODE: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE AND UNABLE TO DECODE
UNABLE TO DECODEUNABLE TO DECODE
SUBSTITUTES & CROSS-REFERENCES 1
PTAA7Reference 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 V21-7?
V21-7 is a VALVE,POSITIVE CRANKCASE VENTILA.
What parts can replace V21-7?
There is 1 known substitute for V21-7: PTAA7. Substitute compatibility should be verified for your specific system.
What is the NSN for V21-7?
V21-7 is cataloged in the U.S. Government catalog under NSN 3439-01-087-2357. 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.