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Technical Data Sheet
PartsTable / MRO / 21975
21975 ✓ Verified by PartsTable
Lindy · 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

<b>Provides 5 hot-swap expansion bays for SAS / SATA hard drives!</b><br><br>The SATA RAID Back Plane system is an internal drive housing that supports five SAS / SATA hard Drives. It can be installed into any suitable PC case or expansion system which has three 5.25" half-height drive bays available. The system is ideal for servers or workstations, allowing instant hot-swap access to the hard drives.<br><br>The Back Plane features a unique connection mechanism which allows the drives to be mounted directly into the back plane without the need for a separate caddy.

A special 'no-scratch' connector protects the drive contacts and is tested to exceed over 10000 insertions and ejections.<br><br>- Allows up to five 3.5" SAS / SATA 1.0a or II hard drives to be installed into three standard 5.25" half-height drive bays.<br>- Features 'caddy-less' drive ejection system.<br>- Supports "Hot Swap" function.<br>- High quality aluminum housing for efficient cooling.<br>- LED indicators for power a This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-087-7804, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 21975
NSN: 5998-01-087-7804
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 78586 — SPECTRAL DYNAMICS INC (USA)
SPECIFICATIONS
end_item_identificationF/A-22 RAPTOR
part_name_assigned_by_controlling_agencyMANIFOLD,HYDRAULIC
NSN5998-01-087-7804
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 21975 MFR Lindy SOCKET,PLUG-IN ELECTRONIC COMPON
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPRINTED WIRING BOARD 1,CAPACITOR 15,DIODE 4,TRANSISTOR 4,RESISTOR 18,MICROCIRCUIT 13
SPECIAL FEATURESPRINTED WIRING BOARD 1,CAPACITOR 15,DIODE 4,TRANSISTOR 4,RESISTOR 18,MICROCIRCUIT 13
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
21570-3Interchangeable
interchangeable cross-reference
interchangeable
21975Interchangeable
interchangeable cross-reference
interchangeable
21975-1Interchangeable
interchangeable cross-reference
interchangeable
EE34718Interchangeable
interchangeable cross-reference
interchangeable
814E1219Interchangeable
interchangeable cross-reference
interchangeable
143-24-12-026Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21975?
21975 is a SOCKET,PLUG-IN ELECTRONIC COMPON manufactured by Lindy. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21975?
There are 8 known substitutes for 21975: 21570-3, 21975, 21975-1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21975?
21975 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-087-7804. 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