PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121903Insulator,disk

Invensys Systems, Inc. Dba Schneider Electric · NSN 5970-00-515-0929 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-515-0929 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-515-0929. Primary manufacturer part number: 121903.
Features
  • Insulator,disk — FSC 5970
  • Material: OVERALL,RUBBER,FLUORSILICONE,TYPE LS-53-71984
  • Style Designator: FLAT, ROUND
  • Outside Diameter: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Invensys Systems, Inc. Dba Schneider Electric
Applications
  • Applications requiring Overall,rubber,fluorsilicone,type Ls-53-71984 construction
General Description

The Insulator,disk, cataloged under National Stock Number 5970-00-515-0929, 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 Invensys Systems, Inc. Dba Schneider Electric. Government technical data includes 3 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-515-0929
Primary Part Number121903
Item NameInsulator,disk
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerInvensys Systems, Inc. Dba Schneider Electric
StatusACTIVE
MaterialOVERALL,RUBBER,FLUORSILICONE,TYPE LS-53-71984
Style DesignatorFLAT, ROUND
Outside Diameter0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-741-01747410174 INTERCHANGEABLE
Nut
U S Army Tank Automotive Command Amsta-Im-Mm
5962-01-578-07701219-03 INTERCHANGEABLE
Microcircuit,digital
Tlsi Inc. Dba Tlsi Inc.
Cross-Reference Index
Part NumberManufacturer
121903 PRIMARY Invensys Systems, Inc. Dba Schneider Electric (USA)
Related Parts
5310-00-741-0174INTERCHANGEABLE
NUT
7410174
5962-01-578-0770INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1219-03

Frequently Asked Questions

What is NSN 5970-00-515-0929?

NSN 5970-00-515-0929 is a Insulator,disk, manufactured by Invensys Systems, Inc. Dba Schneider Electric, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-515-0929?

NSN 5970-00-515-0929 has 1 cross-referenced part number: 121903 (Invensys Systems, Inc. Dba Schneider Electric).

What NSN replaces 5970-00-515-0929?

There are 2 known substitutes for 5970-00-515-0929: 5310-00-741-0174, 5962-01-578-0770. Verify interchangeability with system specifications before substitution.

What are the specifications of 121903?

Key specifications for 121903: Material: OVERALL,RUBBER,FLUORSILICONE,TYPE LS-53-71984; Style Designator: FLAT, ROUND; Overall Height: 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; Outside Diameter: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. 4 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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