PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8178521Electronic Components Assembly

Us Army Aviation and Missile Command · NSN 5998-00-778-3693 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-778-3693 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-778-3693. Primary manufacturer part number: 8178521.
Features
  • Electronic Components Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: Us Army Aviation and Missile Command
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Electronic Components Assembly, cataloged under National Stock Number 5998-00-778-3693, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Us Army Aviation and Missile Command. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-778-3693
Primary Part Number8178521
Item NameElectronic Components Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeXN
Verified Substitutes 7
6240-00-019-0877 INTERCHANGEABLE
Lamp,incandescent
4820-00-083-403822434 INTERCHANGEABLE
Sleeve and Slide,directional Con
Mid-America Aerotech, Llc
6685-00-085-770422434 INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
Provision, Inc. Dba Provision Inc
5315-00-271-692522-4-3-4 INTERCHANGEABLE
Pin,grooved,headless
Lockheed Martin Corporation Div Rotary and Mission Systems
5310-01-154-587726509-000 INTERCHANGEABLE
Washer
Arrow Safety Device Co
3030-01-200-600422425 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
2990-01-319-801122434 AND 44967 INTERCHANGEABLE
Muffler,exhaust
Walker Mfg Co
Cross-Reference Index
Part NumberManufacturer
22434 Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (USA)
8178521 PRIMARY Us Army Aviation and Missile Command (USA)
Related Parts
6240-00-019-0877INTERCHANGEABLE
LAMP,INCANDESCENT
4820-00-083-4038INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
22434
6685-00-085-7704INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
22434
5315-00-271-6925INTERCHANGEABLE
PIN,GROOVED,HEADLESS
22-4-3-4
5310-01-154-5877INTERCHANGEABLE
WASHER
26509-000
3030-01-200-6004INTERCHANGEABLE
BELT,V
22425
2990-01-319-8011INTERCHANGEABLE
MUFFLER,EXHAUST
22434 AND 44967

Frequently Asked Questions

What is NSN 5998-00-778-3693?

NSN 5998-00-778-3693 is a Electronic Components Assembly, manufactured by Us Army Aviation and Missile Command, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-778-3693?

NSN 5998-00-778-3693 has 2 cross-referenced part numbers: 22434 (Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems), 8178521 (Us Army Aviation and Missile Command).

What NSN replaces 5998-00-778-3693?

There are 7 known substitutes for 5998-00-778-3693: 6240-00-019-0877, 4820-00-083-4038, 6685-00-085-7704 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8178521?

Key specifications for 8178521: Special Features: CAPACITOR 1; RESISTOR 1; Special Features: CAPACITOR 1; RESISTOR 1. 2 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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