PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D300599Circuit Card Assembly

Control Flow, Inc. Dba Control Flow Inc · NSN 5998-00-221-9566 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-221-9566 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-221-9566. Primary manufacturer part number: D300599.
Features
  • Circuit Card Assembly — FSC 5998
  • 4 verified cross-references
  • Primary manufacturer: Control Flow, Inc. Dba Control Flow Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-00-221-9566, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Control Flow, Inc. Dba Control Flow Inc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCircuit Card Assembly
FSC / FSG5998 — Circuit Card Assembly (FSG 59)
ManufacturersControl Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (CAGE 16603); Control Flow, Inc. Dba Control Flow Inc (CAGE 3X894)
Technical Specifications
ParameterValue
NSN5998-00-221-9566
Primary Part NumberD300599
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerControl Flow, Inc. Dba Control Flow Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-00-248-89111AC1 INTERCHANGEABLE
Switch,push-Pull
Honeywell International Inc. Dba Honeyweel Sensing & Controls
Cross-Reference Index
Part NumberManufacturer
1AC1 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
1AC1 Control Flow, Inc. Dba Control Flow Inc (USA)
D300599 PRIMARY Control Flow, Inc. Dba Control Flow Inc (USA)
D300599 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
Related Parts
5930-00-248-8911INTERCHANGEABLE
SWITCH,PUSH-PULL
1AC1

Frequently Asked Questions

What is NSN 5998-00-221-9566?

NSN 5998-00-221-9566 is a Circuit Card Assembly, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-221-9566?

NSN 5998-00-221-9566 has 4 cross-referenced part numbers: 1AC1 (Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division), 1AC1 (Control Flow, Inc. Dba Control Flow Inc), D300599 (Control Flow, Inc. Dba Control Flow Inc), D300599 (Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division).

What NSN replaces 5998-00-221-9566?

There is 1 known substitute for 5998-00-221-9566: 5930-00-248-8911. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com