PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56221Chassis,electrical-Electronic Eq

L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions · NSN 5975-01-431-3306 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-01-431-3306 — this item is cataloged by the U.S. Government under National Stock Number 5975-01-431-3306. Primary manufacturer part number: 56221.
Features
  • Chassis,electrical-Electronic Eq — FSC 5975
  • 1 verified cross-reference
  • Primary manufacturer: L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Chassis,electrical-Electronic Eq, cataloged under National Stock Number 5975-01-431-3306, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5975-01-431-3306
Primary Part Number56221
Item NameChassis,electrical-Electronic Eq
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-068-0498MS90725-1 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3120-01-215-971156221 INTERCHANGEABLE
Bearing,sleeve
Leroi International Inc Dba Compair Leroi
5310-01-421-9862 INTERCHANGEABLE
Nut,plain,hexagon
4520-01-432-180256221 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
Cross-Reference Index
Part NumberManufacturer
56221 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
Related Parts
5305-00-068-0498INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS90725-1
3120-01-215-9711INTERCHANGEABLE
BEARING,SLEEVE
56221
5310-01-421-9862INTERCHANGEABLE
NUT,PLAIN,HEXAGON
4520-01-432-1802INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
56221

Frequently Asked Questions

What is NSN 5975-01-431-3306?

NSN 5975-01-431-3306 is a Chassis,electrical-Electronic Eq, manufactured by L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions, classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-01-431-3306?

NSN 5975-01-431-3306 has 1 cross-referenced part number: 56221 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions).

What NSN replaces 5975-01-431-3306?

There are 4 known substitutes for 5975-01-431-3306: 5305-00-068-0498, 3120-01-215-9711, 5310-01-421-9862 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56221?

Key specifications for 56221: End Item Identification: LCU. 1 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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