PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31AInsulator,plate

Reliance Mica Company, Inc. · NSN 5970-00-436-8593 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-436-8593 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-436-8593. Primary manufacturer part number: 31A.
Features
  • Insulator,plate — FSC 5970
  • Second Hole Diameter: 0.043 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
  • Fifth Hole Spacing: 0.100 INCHES NOMINAL IN
  • First Hole Spacing: 0.188 INCHES NOMINAL IN
  • Style Designator: FLAT, DIAMOND
  • Material: MICA OVERALL
  • Second Hole Spacing: 0.480 INCHES NOMINAL IN
  • First Hole Diameter: 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
Applications
  • Applications requiring Mica Overall construction
General Description

The Insulator,plate, cataloged under National Stock Number 5970-00-436-8593, 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 Reliance Mica Company, Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-436-8593
Primary Part Number31A
Item NameInsulator,plate
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerReliance Mica Company, Inc.
StatusACTIVE
Second Hole Diameter0.043 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
Fifth Hole Spacing0.100 INCHES NOMINAL IN
First Hole Spacing0.188 INCHES NOMINAL IN
Style DesignatorFLAT, DIAMOND
MaterialMICA OVERALL
Second Hole Spacing0.480 INCHES NOMINAL IN
First Hole Diameter0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
Fourth Hole Spacing0.200 INCHES NOMINAL IN
First Side Radius0.390 INCHES NOMINAL IN
Third Hole Spacing0.958 INCHES MINIMUM AND 0.962 INCHES MAXIMUM IN
First End Radius0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6605-00-146-5436 INTERCHANGEABLE
Azimuth Ring
6645-00-315-925431A INTERCHANGEABLE
Dial,face
Wakmann Watch Company Inc
5905-00-501-8188 INTERCHANGEABLE
Resistor,voltage Sensitive
3460-01-050-9703 INTERCHANGEABLE
Wheel,abrasive
5965-01-103-0558 INTERCHANGEABLE
Horn,loudspeaker
4820-01-188-3723002866-40 INTERCHANGEABLE
Valve and Nozzle Assy,pot Filler
T and S Brass and Bronze Works Inc
Cross-Reference Index
Part NumberManufacturer
31A PRIMARY Reliance Mica Company, Inc. (USA)
222520-000 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
Related Parts
6605-00-146-5436INTERCHANGEABLE
AZIMUTH RING
6645-00-315-9254INTERCHANGEABLE
DIAL,FACE
31A
5905-00-501-8188INTERCHANGEABLE
RESISTOR,VOLTAGE SENSITIVE
3460-01-050-9703INTERCHANGEABLE
WHEEL,ABRASIVE
5965-01-103-0558INTERCHANGEABLE
HORN,LOUDSPEAKER
4820-01-188-3723INTERCHANGEABLE
VALVE AND NOZZLE ASSY,POT FILLER
002866-40

Frequently Asked Questions

What is NSN 5970-00-436-8593?

NSN 5970-00-436-8593 is a Insulator,plate, manufactured by Reliance Mica Company, Inc., classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-436-8593?

NSN 5970-00-436-8593 has 2 cross-referenced part numbers: 31A (Reliance Mica Company, Inc.), 222520-000 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems).

What NSN replaces 5970-00-436-8593?

There are 6 known substitutes for 5970-00-436-8593: 6605-00-146-5436, 6645-00-315-9254, 5905-00-501-8188 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31A?

Key specifications for 31A: Second Hole Diameter: 0.043 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN; Fifth Hole Spacing: 0.100 INCHES NOMINAL IN; First Hole Spacing: 0.188 INCHES NOMINAL IN; Style Designator: FLAT, DIAMOND. 14 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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