PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21066Mounting Block

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 7035-01-100-5972 · FSC 7035 · No Item Name Available
Verified by PartsTable
NSN 7035-01-100-5972 — this item is cataloged by the U.S. Government under National Stock Number 7035-01-100-5972. Primary manufacturer part number: 21066.
Features
  • Mounting Block — FSC 7035
  • General Characteristics Item Description: MATERIAL ALUMINUM ALLOY 2024-T351,FINISH CHEMICAL FILM PER MIL-C-5541,CLASS 1A,LENGTH O/A 1.812 IN. NOM,WIDTH O/A 0.190 IN. NOM,DEPTH O/A 0.250 IN.,4 THRU HOLES 2-56 UNC-2B A
  • General Characteristics Item Description: MATERIAL ALUMINUM ALLOY 2024-T351,FINISH CHEMICAL FILM PER MIL-C-5541,CLASS 1A,LENGTH O/A 1.812 IN. NOM,WIDTH O/A 0.190 IN. NOM,DEPTH O/A 0.250 IN.,4 THRU HOLES 2-56 UNC-2B A
  • 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 Mounting Block, cataloged under National Stock Number 7035-01-100-5972, is classified within Federal Supply Class 7035 (No Item Name Available) of the General Purpose ADP Equipment group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN7035-01-100-5972
Primary Part Number21066
Item NameMounting Block
FSC / FSG7035 / 70 — No Item Name Available
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
General Characteristics Item DescriptionMATERIAL ALUMINUM ALLOY 2024-T351,FINISH CHEMICAL FILM PER MIL-C-5541,CLASS 1A,LENGTH O/A 1.812 IN. NOM,WIDTH O/A 0.190 IN. NOM,DEPTH O/A 0.250 IN.,4 THRU HOLES 2-56 UNC-2B A
General Characteristics Item DescriptionMATERIAL ALUMINUM ALLOY 2024-T351,FINISH CHEMICAL FILM PER MIL-C-5541,CLASS 1A,LENGTH O/A 1.812 IN. NOM,WIDTH O/A 0.190 IN. NOM,DEPTH O/A 0.250 IN.,4 THRU HOLES 2-56 UNC-2B A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3930-00-359-4193416X47 INTERCHANGEABLE
Retainer
David Brown Hydraulics Inc Dba Hydreco
5905-00-494-4622 INTERCHANGEABLE
Resistor,fixed,composition
5905-00-578-4807 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
5940-00-781-9898J673 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5905-00-829-28272100-0047 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Keysight Technologies Inc
5905-01-089-9507 INTERCHANGEABLE
Resistor,fixed,composition
5962-01-104-4167 INTERCHANGEABLE
Microcircuit,digital-Linear
5340-01-117-470721066 INTERCHANGEABLE
Eye Hook
Norris Dispenser Company
6350-01-192-4679 INTERCHANGEABLE
Horn,signal
2520-01-413-19025714229 INTERCHANGEABLE
Sleeve,clutch,transfer Case
Am General Llc
Cross-Reference Index
Part NumberManufacturer
21066 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
21066E Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
Related Parts
3930-00-359-4193INTERCHANGEABLE
RETAINER
416X47
5905-00-494-4622INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5905-00-578-4807INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
5940-00-781-9898INTERCHANGEABLE
TERMINAL,LUG
J673
5905-00-829-2827INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
2100-0047
5905-01-089-9507INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5962-01-104-4167INTERCHANGEABLE
MICROCIRCUIT,DIGITAL-LINEAR
5340-01-117-4707INTERCHANGEABLE
EYE HOOK
21066
6350-01-192-4679INTERCHANGEABLE
HORN,SIGNAL
2520-01-413-1902INTERCHANGEABLE
SLEEVE,CLUTCH,TRANSFER CASE
5714229
4820-01-415-4436INTERCHANGEABLE
STEM,FLUID VALVE
21066-1001-1
4730-01-415-6593INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
21317-1018-4

Frequently Asked Questions

What is NSN 7035-01-100-5972?

NSN 7035-01-100-5972 is a Mounting Block, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 7035 (No Item Name Available). Status: active.

What are the part numbers for NSN 7035-01-100-5972?

NSN 7035-01-100-5972 has 2 cross-referenced part numbers: 21066 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids), 21066E (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 7035-01-100-5972?

There are 12 known substitutes for 7035-01-100-5972: 3930-00-359-4193, 5905-00-494-4622, 5905-00-578-4807 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21066?

Key specifications for 21066: General Characteristics Item Description: MATERIAL ALUMINUM ALLOY 2024-T351,FINISH CHEMICAL FILM PER MIL-C-5541,CLASS 1A,LENGTH O/A 1.812 IN. NOM,WIDTH O/A 0.190 IN. NOM,DEPTH O/A 0.250 IN.,4 THRU HOLES 2-56 UNC-2B A; General Characteristics Item Description: MATERIAL ALUMINUM ALLOY 2024-T351,FINISH CHEMICAL FILM PER MIL-C-5541,CLASS 1A,LENGTH O/A 1.812 IN. NOM,WIDTH O/A 0.190 IN. NOM,DEPTH O/A 0.250 IN.,4 THRU HOLES 2-56 UNC-2B A. 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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