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N4FR — LOCK,VALVE SPRING RETAINER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

N4FR: LOCK,VALVE SPRING RETAINER.

The LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: POLYESTER; 1/8 IN. THK IN.

This part is cataloged in the U.S. Government catalog under NSN 9390-01-366-6326, 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
N4FR
NSN: 9390-01-366-6326
FSC: 9390 — Miscellaneous Fabricated Nonmetallic Materials
CAGE: 53912 — AIRTECH INTERNATIONAL INC DBA AIRTECH INTERNATIONAL INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionPOLYESTER; 1/8 IN. THK IN
NSN9390-01-366-6326
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,VALVE SPRING RETAINER TITLE COMPONENT PN N4FR MFR LOCK,VALVE SPRING RETA
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: POLYESTER; 1/8 IN. THK IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPOLYESTER; 1/8 IN. THK IN
SUBSTITUTES & CROSS-REFERENCES 2
A-3000FRSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A3000-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N4FR?
N4FR is a LOCK,VALVE SPRING RETAINER.
What parts can replace N4FR?
There are 2 known substitutes for N4FR: A-3000FR, A3000-4. Substitute compatibility should be verified for your specific system.
What is the NSN for N4FR?
N4FR is cataloged in the U.S. Government catalog under NSN 9390-01-366-6326. 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.