PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21218Insulator,plate

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5970-01-098-6156 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-098-6156 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-098-6156. Primary manufacturer part number: 21218.
Features
  • Insulator,plate — FSC 5970
  • First Hole Diameter: 0.312 INCHES NOMINAL IN
  • Material: GLASS FIBER AND PLASTIC EPOXY OVERALL
  • Style Designator: FLAT, RECTANGULAR
  • First Hole Spacing: 3.050 INCHES NOMINAL IN
  • Material Document and Classification: MIL-P-18177, TYPE GEE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Second Hole Spacing: 1.550 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Applications requiring Glass Fiber and Plastic Epoxy Overall construction
General Description

The Insulator,plate, cataloged under National Stock Number 5970-01-098-6156, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 6 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
NSN5970-01-098-6156
Primary Part Number21218
Item NameInsulator,plate
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
First Hole Diameter0.312 INCHES NOMINAL IN
MaterialGLASS FIBER AND PLASTIC EPOXY OVERALL
Style DesignatorFLAT, RECTANGULAR
First Hole Spacing3.050 INCHES NOMINAL IN
Material Document and ClassificationMIL-P-18177, TYPE GEE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Second Hole Spacing1.550 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-297-988921218 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5930-00-496-4580 INTERCHANGEABLE
Switch,toggle
5360-00-612-1510 INTERCHANGEABLE
Spring,helical,compression
5360-00-675-924815486 INTERCHANGEABLE
Spring,helical,extension
Cadillac Gage Textron Inc.
1430-00-794-62231JA2637H08 INTERCHANGEABLE
Shaft,seal Air
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
3010-00-919-5233 INTERCHANGEABLE
Coupling,shaft,flexible
5962-01-205-4880 INTERCHANGEABLE
Microcircuit,digital
2530-01-238-028821218 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Saginaw Products Corporation Dba Cignys
6550-01-359-5094R21218 INTERCHANGEABLE
Ferric Chloride Solution
Remel Inc.
5950-01-413-243721218 INTERCHANGEABLE
Coil,radio Frequency
Vanguard Electronics, Llc
Cross-Reference Index
Part NumberManufacturer
21218D Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
21218 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
Related Parts
5330-00-297-9889INTERCHANGEABLE
SEAL,PLAIN ENCASED
21218
5930-00-496-4580INTERCHANGEABLE
SWITCH,TOGGLE
5360-00-612-1510INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5360-00-675-9248INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
15486
1430-00-794-6223INTERCHANGEABLE
SHAFT,SEAL AIR
1JA2637H08
3010-00-919-5233INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
5962-01-205-4880INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2530-01-238-0288INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
21218
6550-01-359-5094INTERCHANGEABLE
FERRIC CHLORIDE SOLUTION
R21218
5950-01-413-2437INTERCHANGEABLE
COIL,RADIO FREQUENCY
21218
3040-01-417-4978INTERCHANGEABLE
SHAFT,SHOULDERED
21218-1001-1
5940-01-418-5087INTERCHANGEABLE
TERMINAL BOARD
21218

Frequently Asked Questions

What is NSN 5970-01-098-6156?

NSN 5970-01-098-6156 is a Insulator,plate, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-098-6156?

NSN 5970-01-098-6156 has 2 cross-referenced part numbers: 21218D (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids), 21218 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 5970-01-098-6156?

There are 12 known substitutes for 5970-01-098-6156: 5330-00-297-9889, 5930-00-496-4580, 5360-00-612-1510 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21218?

Key specifications for 21218: First Hole Diameter: 0.312 INCHES NOMINAL IN; Material: GLASS FIBER AND PLASTIC EPOXY OVERALL; Style Designator: FLAT, RECTANGULAR; First Hole Spacing: 3.050 INCHES NOMINAL IN. 8 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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