PartsTable
Technical Data Sheet
Download PDF

3403A21 — PLUNGER,SPRING,AIRC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3403A21: PLUNGER,SPRING,AIRC.

The PLUNGER,SPRING,AIRC is a the manufacturer industrial component. Key specifications include end_item_identification: SUPPORT OF PRE-PROVISIONING ITEMS FOR WHICH NAVICP PHIL ACTS AS POE. This part is cataloged in the U.S.

Government catalog under NSN 4920-01-538-0643, 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
3403A21
NSN: 4920-01-538-0643
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
end_item_identificationSUPPORT OF PRE-PROVISIONING ITEMS FOR WHICH NAVICP PHIL ACTS AS POE
NSN4920-01-538-0643
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLUNGER,SPRING,AIRC TITLE COMPONENT PN 3403A21 MFR PLUNGER,SPRING,AIRC
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONSUPPORT OF PRE-PROVISIONING ITEMS FOR WHICH NAVICP PHIL ACTS AS POE
OTHER ITEMS IN FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4920-00-000-0190 4920-00-001-1405 4920-00-001-1716 4920-00-001-1744 4920-00-001-1745 4920-00-001-1746 4920-00-001-1747 4920-00-001-1748
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 3403A21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 3403A21?
3403A21 is a PLUNGER,SPRING,AIRC.
What is the NSN for 3403A21?
3403A21 is cataloged in the U.S. Government catalog under NSN 4920-01-538-0643. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 3403A21

✓ 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.