PartsTable
Technical Data Sheet
A-A-55431 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
CTO = bare chassis: no CPU, no RAM, no disks — configure everything SFF chassis = 2.5" bays | LFF chassis = 3.5" bays
Rail kit included? Usually sold separately.
PRODUCT OVERVIEW

1.42/1.44MB 3.5in high-density disks (Unformatted) (10/BOX)NO LONGER SUPPLIED. Key specifications include disk_type: MAGNETIC, disk_diameter: 3.500 INCHES NOMINAL IN, disk_quantity: 10, tracks_per_inch: 96, special_features: PREFORMATED; TW0 MEGABYTE; USED ON IBM MODEL PC/S2, disk_density_rating: DS/HD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7045-01-283-4362, 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 A-A-55431
NSN: 7045-01-283-4362
FSC: 7045
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
disk_typeMAGNETIC
disk_diameter3.500 INCHES NOMINAL IN
disk_quantity10
tracks_per_inch96
special_featuresPREFORMATED; TW0 MEGABYTE; USED ON IBM MODEL PC/S2
disk_density_ratingDS/HD
part_name_assigned_by_controlling_agencyDISK FLEXIBLE MAGNETIC DS/HD 96 TRACKS PER INCH 10 DISKS
NSN7045-01-283-4362
COMPONENT DIAGRAM
OEM BAY 0 BAY 1 BAY 2 BAY 3 BAY 4 BAY 5 BAY 6 BAY 7 FAN PSU 1 800W PSU 2 800W iLO / BMC | 4x1GbE | VGA | USB | PCIe RISERS 19" RACK WIDTH | 2U HEIGHT (88mm) OEM 2U RACK SERVER | Gen10 | 8x SFF BAYS | REDUNDANT PSU CTO = bare chassis (no CPU/RAM/disk) | SFF = 2.5" bays | LFF = 3.5" bays TITLE 2U SERVER PN A-A-55431 MFR OEM Gen10 RACK SERVER
KEY FEATURES
1.44MB Capacity
DISK DIAMETER: 3.500 INCHES NOMINAL IN
TRACKS PER INCH: 135
DISK DENSITY RATING: DS/HD
DISK QUANTITY: 10
DISK TYPE: MAGNETIC
TECHNICAL CHARACTERISTICS (FLIS)
DISK DIAMETER3.500 INCHES NOMINAL IN
SPECIAL FEATURES2 MEGABYTES UNFORMATTED,SOFT SECTOR.
PART NAME ASSIGNED BY CONTROLLING AGENCYDISK FLEXIBLE
TRACKS PER INCH135
DISK DENSITY RATINGDS/HD
DISK QUANTITY10
DISK TYPEMAGNETIC
DISK DIAMETER3.500 INCHES NOMINAL IN
SPECIAL FEATURES2 MEGABYTES UNFORMATTED,SOFT SECTOR.
PART NAME ASSIGNED BY CONTROLLING AGENCYDISK FLEXIBLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
491Upgraded Successor
successor cross-reference
successor
A20790AUpgraded Successor
successor cross-reference
successor
U525-02Upgraded Successor
successor cross-reference
successor
158-0001Upgraded Successor
successor cross-reference
successor
11455404Upgraded Successor
successor cross-reference
successor
86-269Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-55431?
A-A-55431 is a 1.42/1.44MB 3.5in high-density disks (Unformatted) (10/BOX)NO LONGER SUPPLIED. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-A-55431?
There are 22 known substitutes for A-A-55431: 491, A20790A, U525-02 and 19 more. Substitute compatibility should be verified for your specific system.
Is A-A-55431 still available?
A-A-55431 is currently cancelled.
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