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Technical Data Sheet
PartsTable / MRO / B421
B421 ✓ 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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include width: 3.500 INCHES NOMINAL IN, diameter: 0.375 INCHES IN, material: STEEL, face_width: 0.750 INCHES NOMINAL IN, tooth_type: INTEGRAL, physical_form: STICK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-463-9931, 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→ B421
NSN: 5998-01-463-9931
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 90536 — LOCKHEED MARTIN CORP DBA LOCKHEED MARTIN DIV MST - EAGAN (USA)
SPECIFICATIONS
width3.500 INCHES NOMINAL IN
diameter0.375 INCHES IN
materialSTEEL
face_width0.750 INCHES NOMINAL IN
tooth_typeINTEGRAL
physical_formSTICK
pointer_angle60.0 DEGREES NOMINAL
basic_ingredientALUMINUM SOAP AND PETROLEUM OIL
outside_diameter6.000 INCHES NOMINAL IN
special_features24 STICKS PER BOX
attachment_methodHOLE
tooth_arrangementSTAGGERED
NSN5998-01-463-9931
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 B421 MFR SOCKET,PLUG-IN ELECTRONIC COMPON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
B421Interchangeable
interchangeable cross-reference
interchangeable
8330118Interchangeable
interchangeable cross-reference
interchangeable
7023070Interchangeable
interchangeable cross-reference
interchangeable
45134Interchangeable
interchangeable cross-reference
interchangeable
LUBRICANT24Interchangeable
interchangeable cross-reference
interchangeable
A4503A-Q70Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B421?
B421 is a SOCKET,PLUG-IN ELECTRONIC COMPON. It is classified as a MRO (MRO_GENERAL).
What parts can replace B421?
There are 8 known substitutes for B421: B421, 8330118, 7023070 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B421?
B421 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-463-9931. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026