PartsTable
Technical Data Sheet
PartsTable / MRO / 74157
74157 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include overall_width: 3.670 INCHES NOMINAL IN, overall_length: 5.350 INCHES NOMINAL IN, functional_description: SINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY, end_item_identification: AN/SRC-40 W/FC4 W, part_name_assigned_by_controlling_agency: SINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-557-9593, 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→ 74157
NSN: 5998-01-557-9593
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 1BCK1 — W R SYSTEMS LTD DBA ALERT (USA)
SPECIFICATIONS
overall_width3.670 INCHES NOMINAL IN
overall_length5.350 INCHES NOMINAL IN
functional_descriptionSINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
end_item_identificationAN/SRC-40 W/FC4 W
part_name_assigned_by_controlling_agencySINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
NSN5998-01-557-9593
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 74157 MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
•
FUNCTIONAL DESCRIPTION: SINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESPOWER 8 TO 15 VDC; MEMORY 512K; OPERATING TEMPERATURE 0-70 DEG C; ANALOG INPUTS 8 CHANNELS, 10 BIT A/D CONVERTER; ANALOG OUTPUTS 4 CHANNELS, 112 BIT RESOLUTION; BOARD REQUIRES PROGRAMMING WITH AN/SRC-40 W/FC4 PROGRAM VERSION 2.10 SOFTWARE RESIDES AT SPAWAR, CODE 83 VDC
END ITEM IDENTIFICATIONAN/SRC-40 W/FC4 W
PART NAME ASSIGNED BY CONTROLLING AGENCYSINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
OVERALL LENGTH5.350 INCHES NOMINAL IN
OVERALL WIDTH3.670 INCHES NOMINAL IN
FUNCTIONAL DESCRIPTIONSINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
SPECIAL FEATURESPOWER 8 TO 15 VDC; MEMORY 512K; OPERATING TEMPERATURE 0-70 DEG C; ANALOG INPUTS 8 CHANNELS, 10 BIT A/D CONVERTER; ANALOG OUTPUTS 4 CHANNELS, 112 BIT RESOLUTION; BOARD REQUIRES PROGRAMMING WITH AN/SRC-40 W/FC4 PROGRAM VERSION 2.10 SOFTWARE RESIDES AT SPAWAR, CODE 83 VDC
END ITEM IDENTIFICATIONAN/SRC-40 W/FC4 W
PART NAME ASSIGNED BY CONTROLLING AGENCYSINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
OVERALL LENGTH5.350 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
5339-090654-157Interchangeable
interchangeable cross-reference
interchangeable
MC74157PInterchangeable
interchangeable cross-reference
interchangeable
7904308-02Interchangeable
interchangeable cross-reference
interchangeable
SN74157NInterchangeable
interchangeable cross-reference
interchangeable
ES48TTL9322Interchangeable
interchangeable cross-reference
interchangeable
M38510/01405BEAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74157?
74157 is a MICROCIRCUIT,DIGITAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 74157?
There are 12 known substitutes for 74157: 5339-090654-157, MC74157P, 7904308-02 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74157?
74157 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-557-9593. 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