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Technical Data Sheet
PartsTable / MRO / B1861
B1861 ✓ 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 B1861 is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, head_style: PAN, head_height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN, head_diameter: 0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, overall_width: 4.188 INCHES NOMINAL IN, overall_height: 1.265 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 5998-00-174-3678, 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→ B1861
NSN: 5998-00-174-3678
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 14031 — DIGITECH INDUSTRIES INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
head_stylePAN
head_height0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
head_diameter0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
overall_width4.188 INCHES NOMINAL IN
overall_height1.265 INCHES NOMINAL IN
overall_length7.500 INCHES NOMINAL IN
fastener_length1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
special_featuresTHREADS: 15 THREADS PER INCH
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nonmachine_thread_styleGIMLET POINT (TYPE A, AB OR BA)
NSN5998-00-174-3678
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 B1861 MFR B1861
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESINTEGRATED CIRCUIT 2,PRINTED WIRING BOARD 1,TRANSISTOR 4
OVERALL WIDTH4.188 INCHES NOMINAL IN
OVERALL LENGTH7.500 INCHES NOMINAL IN
OVERALL HEIGHT1.265 INCHES NOMINAL IN
SPECIAL FEATURESINTEGRATED CIRCUIT 2,PRINTED WIRING BOARD 1,TRANSISTOR 4
OVERALL WIDTH4.188 INCHES NOMINAL IN
OVERALL LENGTH7.500 INCHES NOMINAL IN
OVERALL HEIGHT1.265 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
FF-S-111 TY1ST2CInterchangeable
interchangeable cross-reference
interchangeable
149367Interchangeable
interchangeable cross-reference
interchangeable
FF-S-111Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-971Interchangeable
interchangeable cross-reference
interchangeable
B18.6.1Interchangeable
interchangeable cross-reference
interchangeable
MS35493-266Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1861?
B1861 is a B1861. It is classified as a MRO (MRO_GENERAL).
What parts can replace B1861?
There are 17 known substitutes for B1861: FF-S-111 TY1ST2C, 149367, FF-S-111 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B1861?
B1861 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-00-174-3678. 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