JJN-300 — FUSE,CARTRIDGE

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

JJN-300: FUSE,CARTRIDGE.

The FUSE,CARTRIDGE is a the manufacturer industrial component. Key specifications include material: PLASTIC MELAMINE AND GLASS CASE, body_style: HOLE TYPE, overall_length: 2.750 INCHES NOMINAL IN, fragility_factor: MODERATELY RUGGED, overall_diameter: 1.340 INCHES NOMINAL IN, features_provided: NONRENEWABLE FUSIBLE ELEMENT. This part is cataloged in the U.S.

Government catalog under NSN 5920-01-319-6790, 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

MRO→ MRO_GENERAL→ JJN-300

NSN: 5920-01-319-6790
FSC: 5920 — Fuses, Arrestors, Absorbers, and Protectors
CAGE: 71400 — COOPER BUSSMANN, LLC DBA COOPER INDUSTRIES (USA)

SPECIFICATIONS

material	PLASTIC MELAMINE AND GLASS CASE
body_style	HOLE TYPE
overall_length	2.750 INCHES NOMINAL IN
fragility_factor	MODERATELY RUGGED
overall_diameter	1.340 INCHES NOMINAL IN
features_provided	NONRENEWABLE FUSIBLE ELEMENT
precious_material	SILVER
surface_treatment	SILVER TERMINAL
terminal_thickness	0.250 INCHES NOMINAL IN
mounting_hole_diameter	0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
interruption_indicator_method	OPAQUE BODY
precious_material_and_location	TERMINAL SURFACES SILVER
NSN	5920-01-319-6790

COMPONENT DIAGRAM

KEY FEATURES

•

CONTINUOUS CURRENT RATING IN AMPS: 300.000

•

FRAGILITY FACTOR: MODERATELY RUGGED

•

BODY STYLE: HOLE TYPE

•

OVERALL DIAMETER: 1.340 INCHES NOMINAL IN

•

CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.840 INCHES NOMINAL IN

•

PRECIOUS MATERIAL: SILVER

•

TERMINAL THICKNESS: 0.250 INCHES NOMINAL IN

•

MOUNTING HOLE DIAMETER: 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

CONTINUOUS CURRENT RATING IN AMPS	300.000
FRAGILITY FACTOR	MODERATELY RUGGED
BODY STYLE	HOLE TYPE
OVERALL DIAMETER	1.340 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH	1.840 INCHES NOMINAL IN
PRECIOUS MATERIAL	SILVER
TERMINAL THICKNESS	0.250 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER	0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
OVERALL LENGTH	2.750 INCHES NOMINAL IN
INTERRUPTION INDICATOR METHOD	OPAQUE BODY

OTHER ITEMS IN FSC 5920 — Fuses, Arrestors, Absorbers, and Protectors

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5920-00-001-3111 5920-00-001-3260 5920-00-001-3261 5920-00-001-3262 5920-00-001-3263 5920-00-001-3264 5920-00-001-3296 5920-00-001-3840

SUBSTITUTES & CROSS-REFERENCES 3

JLLN 300Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

5920900053Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

GD00879305-03Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is JJN-300?

JJN-300 is a FUSE,CARTRIDGE. It is classified as a MRO (MRO_GENERAL).

What parts can replace JJN-300?

There are 3 known substitutes for JJN-300: JLLN 300, 5920900053, GD00879305-03. Substitute compatibility should be verified for your specific system.

What is the NSN for JJN-300?

JJN-300 is cataloged in the U.S. Government catalog under NSN 5920-01-319-6790. This indicates validated use in U.S. government and defense supply chains.

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