PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DF31AInsulator,washer

Renesas Electronics America Inc · NSN 5970-01-309-2137 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-309-2137 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-309-2137. Primary manufacturer part number: DF31A.
Features
  • Insulator,washer — FSC 5970
  • Material and Location: OVERALL MICA, ASTM D351
  • Style Designator: ROUND, FLAT
  • 1 verified cross-reference
  • Primary manufacturer: Renesas Electronics America Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Insulator,washer, cataloged under National Stock Number 5970-01-309-2137, 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 Renesas Electronics America Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5970-01-309-2137
Primary Part NumberDF31A
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerRenesas Electronics America Inc
StatusACTIVE
Material and LocationOVERALL MICA, ASTM D351
Style DesignatorROUND, FLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5970-00-023-62469287758 INTERCHANGEABLE
Insulator,plate
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament
5999-00-136-3937DF31A INTERCHANGEABLE
Mounting Pad,electrical-Electron
Reliance Mica Company, Inc.
5970-00-290-99412270150-0001 INTERCHANGEABLE
Insulator,plate
Honeywell Intl Inc Defense Avionics Systems
5970-00-426-1054 INTERCHANGEABLE
Insulator,plate
5970-00-488-7128DF31A INTERCHANGEABLE
Insulator,plate
Magnetic Shield Corp
5310-01-064-7368 INTERCHANGEABLE
Washer,mica,transis
Cross-Reference Index
Part NumberManufacturer
DF31A PRIMARY Renesas Electronics America Inc (USA)
Related Parts
5970-00-023-6246INTERCHANGEABLE
INSULATOR,PLATE
9287758
5999-00-136-3937INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
DF31A
5970-00-290-9941INTERCHANGEABLE
INSULATOR,PLATE
2270150-0001
5970-00-426-1054INTERCHANGEABLE
INSULATOR,PLATE
5970-00-488-7128INTERCHANGEABLE
INSULATOR,PLATE
DF31A
5310-01-064-7368INTERCHANGEABLE
WASHER,MICA,TRANSIS

Frequently Asked Questions

What is NSN 5970-01-309-2137?

NSN 5970-01-309-2137 is a Insulator,washer, manufactured by Renesas Electronics America Inc, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-309-2137?

NSN 5970-01-309-2137 has 1 cross-referenced part number: DF31A (Renesas Electronics America Inc).

What NSN replaces 5970-01-309-2137?

There are 6 known substitutes for 5970-01-309-2137: 5970-00-023-6246, 5999-00-136-3937, 5970-00-290-9941 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DF31A?

Key specifications for DF31A: Material and Location: OVERALL MICA, ASTM D351; Style Designator: ROUND, FLAT. 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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