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Technical Data Sheet
257030 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The FUSE,ENCLOSED LINK is a the manufacturer industrial component. Key specifications include material: COPPER TERMINAL, body_style: PLUG-IN AUTOFUSEPLUG-IN AUTOFUSE, joint_type: SCARF-PERIPHERAL PACKING, overall_width: 0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN, overall_height: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN, overall_length: 0.750 INCHES NOMINAL0.750 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 5330-01-077-9406, 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 257030
NSN: 5330-01-077-9406
FSC: 5330
CAGE: 04627 — HYSTER-YALE GROUP, INC. DIV HYSTER-YALE MATERIALS HANDLING (USA)
SPECIFICATIONS
materialCOPPER TERMINAL
body_stylePLUG-IN AUTOFUSEPLUG-IN AUTOFUSE
joint_typeSCARF-PERIPHERAL PACKING
overall_width0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
overall_length0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
surface_treatmentNICKEL TERMINAL
peripheral_diameter6.750 INCHES NOMINAL IN
center_hole_diameter6.015 INCHES NOMINAL IN
cross-sectional_height0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
end_item_identificationMRAP BUFFALO MK2A2; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)MRAP BUFFALO MK2A2; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
cross-sectional_shape_styleSQUARE/RECTANGULAR
NSN5330-01-077-9406
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 257030 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
CENTER HOLE DIAMETER: 6.015 INCHES NOMINAL IN
MATERIAL: PLASTIC POLYPROPYLENE OVERALL
JOINT TYPE: SCARF-PERIPHERAL PACKING
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
CROSS-SECTIONAL HEIGHT: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
PERIPHERAL DIAMETER: 6.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER6.015 INCHES NOMINAL IN
MATERIALPLASTIC POLYPROPYLENE OVERALL
JOINT TYPESCARF-PERIPHERAL PACKING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CROSS-SECTIONAL HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
PERIPHERAL DIAMETER6.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
ATO-30Interchangeable
interchangeable cross-reference
interchangeable
2440602380Interchangeable
interchangeable cross-reference
interchangeable
202440602380Interchangeable
interchangeable cross-reference
interchangeable
A700850Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 257030?
257030 is a FUSE,ENCLOSED LINK. It is classified as a MRO (MRO_GENERAL).
What parts can replace 257030?
There are 4 known substitutes for 257030: ATO-30, 2440602380, 202440602380 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 257030?
257030 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-077-9406. This indicates validated use in U.S. government and defense supply chains.
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