PartsTable / O-RING / 5278-11
5278-11 — Technical Data Sheet
✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The REACTOR is a the manufacturer industrial component. Key specifications include body_width: 5.310 INCHES NOMINAL IN, body_height: 9.120 INCHES NOMINAL IN, body_length: 10.690 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: HERMETICALLY SEALED, inductance_type: FIXED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-196-5368, 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
5278-11
NSN: 5331-00-196-5368
FSC: 5331 — O-RING
CAGE: 0KDP7 — KIDDE-FENWAL, LLC (USA)
SPECIFICATIONS
body_width 5.310 INCHES NOMINAL IN
body_height 9.120 INCHES NOMINAL IN
body_length 10.690 INCHES NOMINAL IN
rating_method ELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_type HERMETICALLY SEALED
inductance_type FIXED
mounting_method FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
winding_quantity 1 SINGLE COMPONENT
inductance_rating 105.00 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
reliability_indicator NOT ESTABLISHED
winding_operating_current 10.1 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
mounting_facility_quantity 4 SINGLE GROUP
NSN 5331-00-196-5368
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: 5278-11
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
5-09301 Interchangeable interchangeable cross-reference
interchangeable
3918K1 Interchangeable interchangeable cross-reference
interchangeable
143931 Interchangeable interchangeable cross-reference
interchangeable
EAB1707 Interchangeable interchangeable cross-reference
interchangeable
5458 Interchangeable interchangeable cross-reference
interchangeable
67174 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5278-11?
5278-11 is a REACTOR.
What parts can replace 5278-11?
There are 25 known substitutes for 5278-11: 5-09301, 3918K1, 143931 and 22 more. Substitute compatibility should be verified for your specific system.
Is 5278-11 still available?
5278-11 is currently cancelled.
Request a Quote — 5278-11