PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9766-143Insulator,washer

Eby Group, Llc, the Dba Eby Company Div Eby Company · NSN 5970-00-099-5902 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-099-5902 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-099-5902. Primary manufacturer part number: 9766-143.
Features
  • Insulator,washer — FSC 5970
  • Style Designator: ROUND, FLAT
  • Material: PLASTIC OVERALL
  • Material Document and Classification: MIL-P-19098 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Inside Diameter: 0.307 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
  • Outside Diameter: 0.573 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
  • 4 verified cross-references
  • Primary manufacturer: Eby Group, Llc, the Dba Eby Company Div Eby Company
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Overall construction
General Description

The Insulator,washer, cataloged under National Stock Number 5970-00-099-5902, 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 Eby Group, Llc, the Dba Eby Company Div Eby Company. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-099-5902
Primary Part Number9766-143
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerEby Group, Llc, the Dba Eby Company Div Eby Company
StatusACTIVE
Style DesignatorROUND, FLAT
MaterialPLASTIC OVERALL
Material Document and ClassificationMIL-P-19098 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Inside Diameter0.307 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Outside Diameter0.573 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-737-5110117066 INTERCHANGEABLE
Gasket
Am General Llc
2540-01-062-1927NW15548 INTERCHANGEABLE
Seat,vehicular
Tld Wollard Llc
6515-01-563-7538117066 INTERCHANGEABLE
Drill,bone
Smith and Nephew Dyonics Inc
Cross-Reference Index
Part NumberManufacturer
B4037563 Department of the Army Hq United States Army Communications Research and Development Command (USA)
9766-143 PRIMARY Eby Group, Llc, the Dba Eby Company Div Eby Company (USA)
B4037563 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
117066 Itt Telecom Products Corp Network Systems Div (USA)
Related Parts
5330-00-737-5110INTERCHANGEABLE
GASKET
117066
2540-01-062-1927INTERCHANGEABLE
SEAT,VEHICULAR
NW15548
6515-01-563-7538INTERCHANGEABLE
DRILL,BONE
117066

Frequently Asked Questions

What is NSN 5970-00-099-5902?

NSN 5970-00-099-5902 is a Insulator,washer, manufactured by Eby Group, Llc, the Dba Eby Company Div Eby Company, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-099-5902?

NSN 5970-00-099-5902 has 4 cross-referenced part numbers: B4037563 (Department of the Army Hq United States Army Communications Research and Development Command), 9766-143 (Eby Group, Llc, the Dba Eby Company Div Eby Company), B4037563 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 117066 (Itt Telecom Products Corp Network Systems Div).

What NSN replaces 5970-00-099-5902?

There are 3 known substitutes for 5970-00-099-5902: 5330-00-737-5110, 2540-01-062-1927, 6515-01-563-7538. Verify interchangeability with system specifications before substitution.

What are the specifications of 9766-143?

Key specifications for 9766-143: Overall Height: 0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Style Designator: ROUND, FLAT; Material: PLASTIC OVERALL; Material Document and Classification: MIL-P-19098 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 6 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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