257055-1 — CIRCUIT BREAKER

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

257055-1: CIRCUIT BREAKER.

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, surface_finish: 125.0 MICROINCHES OVERALL, inside_diameter: 1.875 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN, outside_diameter: 2.400 INCHES NOMINAL IN, overall_thickness: 0.309 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN, surface_treatment: ANODIZE. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-895-7189, 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→ 257055-1

NSN: 5365-00-895-7189
NIINs: 008957189, 015617122
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 55284 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL DIV AEROSPACE-SOUTH BEND (WESTMOOR ST) (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024
surface_finish	125.0 MICROINCHES OVERALL
inside_diameter	1.875 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
outside_diameter	2.400 INCHES NOMINAL IN
overall_thickness	0.309 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN
surface_treatment	ANODIZE
end_item_identification	ELECTRONIC COMPONENT
material_document_and_classification	QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agency	CIRCUIT BREAKER
surface_treatment_document_and_classification	MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
NSN	5365-00-895-7189

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES OVERALL

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE

•

OUTSIDE DIAMETER: 2.400 INCHES NOMINAL IN

•

OVERALL THICKNESS: 0.309 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE

•

INSIDE DIAMETER: 1.875 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN

•

SURFACE TREATMENT: ANODIZE

•

MATERIAL: ALUMINUM ALLOY 2024

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
OUTSIDE DIAMETER	2.400 INCHES NOMINAL IN
OVERALL THICKNESS	0.309 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE
INSIDE DIAMETER	1.875 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
SURFACE TREATMENT	ANODIZE
MATERIAL	ALUMINUM ALLOY 2024

SUBSTITUTES & CROSS-REFERENCES 1

1669-20Reference 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 257055-1?

257055-1 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).

What parts can replace 257055-1?

There is 1 known substitute for 257055-1: 1669-20. Substitute compatibility should be verified for your specific system.

What is the NSN for 257055-1?

257055-1 is cataloged in the U.S. Government catalog under NSN 5365-00-895-7189. This indicates validated use in U.S. government and defense supply chains.

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257055-1 — CIRCUIT BREAKER

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