PartsTable
Technical Data Sheet
Download PDF

SI4394203-209 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SI4394203-209: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, fsc_application_data: AXLE JACK PUMP ASSEMBLY SI4394202-201, end_item_identification: JACK,AIRCRAFT LANDING GEAR,1730-01-476-1946, part_name_assigned_by_controlling_agency: COPPER SEAL,BALL CHECK SPRING. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-485-9385, 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
SI4394203-209
NSN: 5330-01-485-9385
FSC: 5330 — Packing and Gasket Materials
CAGE: 19494 — SEYER INDUSTRIES, INC. DBA SEYER INDUSTRIES INC (USA)
SPECIFICATIONS
materialCOPPER OVERALL
fsc_application_dataAXLE JACK PUMP ASSEMBLY SI4394202-201
end_item_identificationJACK,AIRCRAFT LANDING GEAR,1730-01-476-1946
part_name_assigned_by_controlling_agencyCOPPER SEAL,BALL CHECK SPRING
NSN5330-01-485-9385
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SI4394203-209 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FSC APPLICATION DATA: AXLE JACK PUMP ASSEMBLY SI4394202-201
•
MATERIAL: COPPER OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAAXLE JACK PUMP ASSEMBLY SI4394202-201
PART NAME ASSIGNED BY CONTROLLING AGENCYCOPPER SEAL,BALL CHECK SPRING
END ITEM IDENTIFICATIONJACK,AIRCRAFT LANDING GEAR,1730-01-476-1946
MATERIALCOPPER OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
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 SI4394203-209?
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 SI4394203-209?
SI4394203-209 is a GASKET.
What is the NSN for SI4394203-209?
SI4394203-209 is cataloged in the U.S. Government catalog under NSN 5330-01-485-9385. 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 — SI4394203-209

✓ 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.