PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21075Circuit Card Assembly

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5998-01-131-4655 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-131-4655 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-131-4655. Primary manufacturer part number: 21075.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-131-4655, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5998-01-131-4655
Primary Part Number21075
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
No Item Name Available
3110-00-100-353221075 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3110-00-100-359542375 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Federal-Mogul Corp Government Sales Dept
5905-00-650-16732100-0056 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Keysight Technologies Inc
2990-00-776-5027 INTERCHANGEABLE
Muffler,exhaust
5330-01-021-5368720-2402065PIECE 25 INTERCHANGEABLE
Seal,plain Encased
Naval Sea Systems Command
5962-01-099-2846 INTERCHANGEABLE
Microcircuit,linear
5985-01-140-00924779-5 INTERCHANGEABLE
Attenuator,fixed
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
5815-01-171-1633 INTERCHANGEABLE
Flat Cable Assembly
4820-01-419-254321075 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21075 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
21075M PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
Related Parts
5895-01-070-9106SUCCESSOR
NO ITEM NAME AVAILABLE
3110-00-100-3532INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
21075
3110-00-100-3595INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
42375
5905-00-650-1673INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
2100-0056
2990-00-776-5027INTERCHANGEABLE
MUFFLER,EXHAUST
5330-01-021-5368INTERCHANGEABLE
SEAL,PLAIN ENCASED
720-2402065PIECE 25
5962-01-099-2846INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5985-01-140-0092INTERCHANGEABLE
ATTENUATOR,FIXED
4779-5
5815-01-171-1633INTERCHANGEABLE
FLAT CABLE ASSEMBLY
4820-01-419-2543INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21075
4730-01-476-4426INTERCHANGEABLE
RESTRICTOR UNIT,FLUID FLOW
JEDA1875120H

Frequently Asked Questions

What is NSN 5998-01-131-4655?

NSN 5998-01-131-4655 is a Circuit Card Assembly, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5998 (Circuit Card Assembly). Status: cancelled.

What are the part numbers for NSN 5998-01-131-4655?

NSN 5998-01-131-4655 has 2 cross-referenced part numbers: 21075 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids), 21075M (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 5998-01-131-4655?

There are 11 known substitutes for 5998-01-131-4655: 5895-01-070-9106, 3110-00-100-3532, 3110-00-100-3595 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21075?

Key specifications for 21075: Special Features: PRINTED WIRING BOARD 1; CAPACITORS 28; DIODE 19; RESISTORS 42; MICROCIRCUITS 43; Special Features: PRINTED WIRING BOARD 1; CAPACITORS 28; DIODE 19; RESISTORS 42; MICROCIRCUITS 43. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5998-01-131-4655 still in active supply?

NSN 5998-01-131-4655 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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