PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16221Circuit Card Assembly

Itw Gse Inc. · NSN 5998-01-579-5590 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-579-5590 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-579-5590. Primary manufacturer part number: 16221.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: Itw Gse 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 5998-01-579-5590, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Itw Gse Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5998-01-579-5590
Primary Part Number16221
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerItw Gse Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-01-123-5271 (16221)
HAZMATNo
Verified Substitutes 11
5999-01-123-527116221 SUCCESSOR
Shielding Gasket,electronic
Dayton-Granger, Inc.
5325-00-049-9053 INTERCHANGEABLE
Ring,retaining
5950-00-293-9931 INTERCHANGEABLE
Transformer,radio Frequency
5330-00-500-125016221 INTERCHANGEABLE
Gasket
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
2510-00-554-87731622 INTERCHANGEABLE
Spring Assembly,leaf
Pdi Ground Support Systems, Inc.
6930-01-041-74851622-1 INTERCHANGEABLE
Gauge,special
Malwin Electronics Corp.
3455-01-045-4016TABLE 21, D3/4IN INTERCHANGEABLE
Cutter,milling,end
The American Society of Mechanical Engineers
5305-01-135-745516221 INTERCHANGEABLE
Screw
Westerbeke Corporation
3040-01-360-444816221 INTERCHANGEABLE
Housing,mechanical Drive
New Venture Gear Inc New Process Gear Div
4730-01-450-3103IS-20F-300 2 INCH INTERCHANGEABLE
Strainer,sediment
Tate Andale, Llc
Cross-Reference Index
Part NumberManufacturer
16221 Gse Holdings Inc. Dba Itw Military Gse Div Hobart Ground Systems (USA)
16221 PRIMARY Itw Gse Inc. (USA)
Related Parts
SUCCESSOR 5999-01-123-5271 Shielding Gasket,electronic · 16221
5325-00-049-9053INTERCHANGEABLE
RING,RETAINING
5950-00-293-9931INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5330-00-500-1250INTERCHANGEABLE
GASKET
16221
2510-00-554-8773INTERCHANGEABLE
SPRING ASSEMBLY,LEAF
1622
6930-01-041-7485INTERCHANGEABLE
GAUGE,SPECIAL
1622-1
3455-01-045-4016INTERCHANGEABLE
CUTTER,MILLING,END
TABLE 21, D3/4IN
5305-01-135-7455INTERCHANGEABLE
SCREW
16221
3040-01-360-4448INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
16221
4730-01-450-3103INTERCHANGEABLE
STRAINER,SEDIMENT
IS-20F-300 2 INCH
6515-01-589-5078INTERCHANGEABLE
SCREW,BONE
02.205.110

Frequently Asked Questions

What is NSN 5998-01-579-5590?

NSN 5998-01-579-5590 is a Circuit Card Assembly, manufactured by Itw Gse Inc., classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-579-5590?

NSN 5998-01-579-5590 has 2 cross-referenced part numbers: 16221 (Gse Holdings Inc. Dba Itw Military Gse Div Hobart Ground Systems), 16221 (Itw Gse Inc.).

What NSN replaces 5998-01-579-5590?

There are 11 known substitutes for 5998-01-579-5590: 5999-01-123-5271, 5325-00-049-9053, 5950-00-293-9931 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16221?

Key specifications for 16221: End Item Identification: MODEL E100AC4-1A ELECTRICALLY OPERATED MOBILE AIR CONDITIONER A; Part Name Assigned by Controlling Agency: TIMER DELAY PCB; End Item Identification: MODEL E100AC4-1A ELECTRICALLY OPERATED MOBILE AIR CONDITIONER A; Part Name Assigned by Controlling Agency: TIMER DELAY PCB. 4 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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