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15778 ✓ 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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: STEEL CORROSION RESISTING OVERALL, body_width: 1.000 INCHES NOMINAL IN, case_style: SQUARE, seal_width: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, body_height: 1.380 INCHES NOMINAL IN, body_length: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-021-3859, 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
15778
NSN: 5330-00-021-3859
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
body_width1.000 INCHES NOMINAL IN
case_styleSQUARE
seal_width0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
body_height1.380 INCHES NOMINAL IN
body_length1.000 INCHES NOMINAL IN
temp_rating300.0 CELSIUS DEGC
inclosure_typeHERMETICALLY SEALED
overall_length5.906 INCHES NOMINAL IN
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
outside_diameter2.879 INCHES NOMINAL IN
NSN5330-00-021-3859
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 15778 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
•
OUTSIDE DIAMETER: 2.879 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.563 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: PLASTIC ACRYLIC SEALING ELEMENT A
•
SEAL WIDTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
TEMP RATING: 300.0 CELSIUS DEGC
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.879 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.563 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALPLASTIC ACRYLIC SEALING ELEMENT A
SEAL WIDTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
TEMP RATING300.0 CELSIUS DEGC
MATERIALPLASTIC ACRYLIC SEALING ELEMENT B
SEALING ELEMENT STYLEANGULAR-OPPOSED
HOUSING BORE DIAMETER2.875 INCHES NOMINAL IN
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
15778Interchangeable
interchangeable cross-reference
interchangeable
805174-1Interchangeable
interchangeable cross-reference
interchangeable
1207-004-A000Interchangeable
interchangeable cross-reference
interchangeable
N301-T2900KInterchangeable
interchangeable cross-reference
interchangeable
KA-59-96Interchangeable
interchangeable cross-reference
interchangeable
683RH-1/4-3/8SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 15778?
15778 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 15778?
There are 15 known substitutes for 15778: 15778, 805174-1, 1207-004-A000 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 15778?
15778 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-021-3859. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026