PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74157Circuit Card Assembly

W R Systems Ltd Dba Alert · NSN 5998-01-557-9593 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-557-9593 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-557-9593. Primary manufacturer part number: 74157.
Features
  • Circuit Card Assembly — FSC 5998
  • Functional Description: SINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
  • Functional Description: SINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
  • 3 verified cross-references
  • Primary manufacturer: W R Systems Ltd Dba Alert
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-557-9593, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is W R Systems Ltd Dba Alert. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-557-9593
Primary Part Number74157
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerW R Systems Ltd Dba Alert
StatusACTIVE
Functional DescriptionSINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
Functional DescriptionSINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 4
5962-00-430-2641 INTERCHANGEABLE
Microcircuit,digital
5962-01-076-9002 INTERCHANGEABLE
Microcircuit,digital
9150-01-083-0300LUBRIPLATE FMO-350 INTERCHANGEABLE
Lubricating Oil,food Processing
Fiske Bros Refining Co
4810-01-416-777874157 INTERCHANGEABLE
Valve,edging Machin
Dac Vision Incorporated
Cross-Reference Index
Part NumberManufacturer
74157 PRIMARY W R Systems Ltd Dba Alert (USA)
MICROPAC-180 W R Systems Ltd Dba Alert (USA)
74157 Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic (USA)
Related Parts
5962-00-430-2641INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-076-9002INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
9150-01-083-0300INTERCHANGEABLE
LUBRICATING OIL,FOOD PROCESSING
LUBRIPLATE FMO-350
4810-01-416-7778INTERCHANGEABLE
VALVE,EDGING MACHIN
74157

Frequently Asked Questions

What is NSN 5998-01-557-9593?

NSN 5998-01-557-9593 is a Circuit Card Assembly, manufactured by W R Systems Ltd Dba Alert, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-557-9593?

NSN 5998-01-557-9593 has 3 cross-referenced part numbers: 74157 (W R Systems Ltd Dba Alert), MICROPAC-180 (W R Systems Ltd Dba Alert), 74157 (Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic).

What NSN replaces 5998-01-557-9593?

There are 4 known substitutes for 5998-01-557-9593: 5962-00-430-2641, 5962-01-076-9002, 9150-01-083-0300 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 74157?

Key specifications for 74157: Special Features: POWER 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 Identification: AN/SRC-40 W/FC4 W; Part Name Assigned by Controlling Agency: SINGLE BOARD COMPUTER CIRCUIT CARD ASSEMBLY; Overall Length: 5.350 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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