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3E-7428 — PLUG,LEAKPROOF SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3E-7428: PLUG,LEAKPROOF SEAL.

The PLUG,LEAKPROOF SEAL is a the manufacturer industrial component. Key specifications include special_features: FOR COOLING SYSTEM OF C9 MARINE GENERATOR SET, functional_description: DRAIN PLUG, THREADED, supplementary_features: HEX WRENCHING SURFACE, part_name_assigned_by_controlling_agency: PLUG-PIPE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-661-7315, 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
3E-7428
NSN: 5340-01-661-7315
FSC: 5340 — Hardware, Commercial
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
special_featuresFOR COOLING SYSTEM OF C9 MARINE GENERATOR SET
functional_descriptionDRAIN PLUG, THREADED
supplementary_featuresHEX WRENCHING SURFACE
part_name_assigned_by_controlling_agencyPLUG-PIPE
NSN5340-01-661-7315
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3E-7428 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
•
SUPPLEMENTARY FEATURES: HEX WRENCHING SURFACE
•
FUNCTIONAL DESCRIPTION: DRAIN PLUG, THREADED
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESHEX WRENCHING SURFACE
SPECIAL FEATURESFOR COOLING SYSTEM OF C9 MARINE GENERATOR SET
FUNCTIONAL DESCRIPTIONDRAIN PLUG, THREADED
PART NAME ASSIGNED BY CONTROLLING AGENCYPLUG-PIPE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3E-7428?
3E-7428 is a PLUG,LEAKPROOF SEAL.
What is the NSN for 3E-7428?
3E-7428 is cataloged in the U.S. Government catalog under NSN 5340-01-661-7315. 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.