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Technical Data Sheet
PartsTable / COMPONENT / A555
A555 ✓ Verified by PartsTable
— · CABLE ASSEMBLY
WHAT YOU NEED TO KNOW
SAS cables have specific lane counts: 4i (internal) or 4e (external) Cable length matters — too short won't reach, too long creates clutter
Verify connector type on BOTH ends — many SAS cables are asymmetric
PRODUCT OVERVIEW

SEAL ASSEMBLY,SHAFT,SPRING LOADE. Key specifications include material: STEEL, power_source: SOUND POWERED, overall_width: 1.939 INCHES NOMINAL IN, overall_height: 0.625 INCHES NOMINAL IN, overall_length: 2.439 INCHES NOMINAL IN, impedance_rating: 1.4 KILOHMS NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-279-2020, 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
A555
NSN: 5999-00-279-2020
FSC: 5999
CAGE: 91820 — JETRONIC INDUSTRIES, INC. DBA JETRONIC INDUSTRIES, INC. DIV CONTRACTS (USA)
SPECIFICATIONS
materialSTEEL
power_sourceSOUND POWERED
overall_width1.939 INCHES NOMINAL IN
overall_height0.625 INCHES NOMINAL IN
overall_length2.439 INCHES NOMINAL IN
impedance_rating1.4 KILOHMS NOMINAL
style_designatorIRREGULAR
surface_treatmentCADMIUM
conductor_quantity2
earphone_element_typeMAGNETIC
microphone_element_typeMAGNETIC
earphone_impedance_rating60.0 OHMS NOMINAL
NSN5999-00-279-2020
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN A555 MFR SEAL ASSEMBLY,SHAFT,SPRING LOADE
KEY FEATURES
•
STYLE DESIGNATOR: IRREGULAR
•
ACCOMMODATED ITEM SECURING DEVICE TYPE: CLAMP
•
MATERIAL: STEEL
•
MOUNTING FACILITY TYPE AND QUANTITY: 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.177 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
SURFACE TREATMENT: CADMIUM
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.625 INCHES NOMINAL IN
STYLE DESIGNATORIRREGULAR
ACCOMMODATED ITEM SECURING DEVICE TYPECLAMP
MATERIALSTEEL
MOUNTING FACILITY TYPE AND QUANTITY3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
UNTHREADED MOUNTING HOLE DIAMETER0.177 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
SURFACE TREATMENTCADMIUM
OVERALL LENGTH2.439 INCHES NOMINAL IN
OVERALL WIDTH1.939 INCHES NOMINAL IN
OVERALL HEIGHT0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A555Interchangeable
interchangeable cross-reference
interchangeable
7423356Interchangeable
interchangeable cross-reference
interchangeable
131-50555Interchangeable
interchangeable cross-reference
interchangeable
A577Interchangeable
interchangeable cross-reference
interchangeable
A277-1Interchangeable
interchangeable cross-reference
interchangeable
702019-845Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A555?
A555 is a SEAL ASSEMBLY,SHAFT,SPRING LOADE.
What parts can replace A555?
There are 6 known substitutes for A555: A555, 7423356, 131-50555 and 3 more. Substitute compatibility should be verified for your specific system.
Is A555 still available?
A555 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026