PartsTable
Technical Data Sheet
PartsTable / MRO / EM258
EM258 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

The EM258 is a the manufacturer industrial component. Key specifications include overall_width: 7.600 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 5.750 INCHES NOMINAL IN, special_features: PART OF THE VIRGINIA CLASS ABMS SDPM ASSEMBLY, end_item_identification: LOS ANGELES CLASS SSN (688), terminal_type_and_quantity: 26 PIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-509-0729, 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→ EM258
NSN: 5998-01-509-0729
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 28199 — L3 TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
overall_width7.600 INCHES NOMINAL IN
overall_height1.000 INCHES NOMINAL IN
overall_length5.750 INCHES NOMINAL IN
special_featuresPART OF THE VIRGINIA CLASS ABMS SDPM ASSEMBLY
end_item_identificationLOS ANGELES CLASS SSN (688)
terminal_type_and_quantity26 PIN
part_name_assigned_by_controlling_agencyCIRCUIT BOARD
NSN5998-01-509-0729
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 EM258 MFR EM258
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 26 PIN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPART OF THE VIRGINIA CLASS ABMS SDPM ASSEMBLY
TERMINAL TYPE AND QUANTITY26 PIN
OVERALL WIDTH7.600 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCIRCUIT BOARD
OVERALL LENGTH5.750 INCHES NOMINAL IN
END ITEM IDENTIFICATIONLOS ANGELES CLASS SSN (688)
OVERALL HEIGHT1.000 INCHES NOMINAL IN
SPECIAL FEATURESPART OF THE VIRGINIA CLASS ABMS SDPM ASSEMBLY
TERMINAL TYPE AND QUANTITY26 PIN
OVERALL WIDTH7.600 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
104708Upgraded Successor
successor cross-reference
successor
3040PL1076470Interchangeable
interchangeable cross-reference
interchangeable
536934-2Interchangeable
interchangeable cross-reference
interchangeable
HL21255Interchangeable
interchangeable cross-reference
interchangeable
NC1315Interchangeable
interchangeable cross-reference
interchangeable
EM258Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
Ready to buy EM258?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is EM258?
EM258 is a EM258. It is classified as a MRO (MRO_GENERAL).
What parts can replace EM258?
There are 19 known substitutes for EM258: 104708, 3040PL1076470, 536934-2 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for EM258?
EM258 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-509-0729. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — EM258

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026