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E78 — HEATER,THERMAL RELEASE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

E78: HEATER,THERMAL RELEASE.

The HEATER,THERMAL RELEASE is a the manufacturer industrial component. Key specifications include construction: SOLID, special_features: 62.9 TO 69.1 AMPS, style_designator: CIRCULAR, aperture_diameter: 6.125 INCHES NOMINAL IN, fabrication_method: SOLID, end_item_identification: MISC PARTS E/I FSCM 03950. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-071-1479, 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
E78
NSN: 5330-01-071-1479
NIINs: 010711479, 014396962
FSC: 5330 — Packing and Gasket Materials
CAGE: 05852 — BARNSTEAD THERMOLYNE CORPORATION DBA BARNSTEAD INTERNATIONAL DIV LABORATORY EQUIPMENT (USA)
SPECIFICATIONS
constructionSOLID
special_features62.9 TO 69.1 AMPS
style_designatorCIRCULAR
aperture_diameter6.125 INCHES NOMINAL IN
fabrication_methodSOLID
end_item_identificationMISC PARTS E/I FSCM 03950
cross-sectional_shape_styleCIRCULAR
cross_section_outside_diameter0.128 INCHES NOMINAL IN
NSN5330-01-071-1479
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: E78 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
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR
•
APERTURE DIAMETER: 6.125 INCHES NOMINAL IN
•
CROSS SECTION OUTSIDE DIAMETER: 0.128 INCHES NOMINAL IN
•
FABRICATION METHOD: SOLID
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLECIRCULAR
APERTURE DIAMETER6.125 INCHES NOMINAL IN
CROSS SECTION OUTSIDE DIAMETER0.128 INCHES NOMINAL IN
FABRICATION METHODSOLID
CONSTRUCTIONSOLID
SUBSTITUTES & CROSS-REFERENCES 1
250007801Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is E78?
E78 is a HEATER,THERMAL RELEASE.
What parts can replace E78?
There is 1 known substitute for E78: 250007801. Substitute compatibility should be verified for your specific system.
What is the NSN for E78?
E78 is cataloged in the U.S. Government catalog under NSN 5330-01-071-1479. 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.