PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403766Insulator,washer

Telemechanics Inc · NSN 5970-01-028-4060 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-028-4060 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-028-4060. Primary manufacturer part number: 403766.
Features
  • Insulator,washer — FSC 5970
  • Outside Diameter: 0.753 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Telemechanics Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Insulator,washer, cataloged under National Stock Number 5970-01-028-4060, 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 Telemechanics Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN5970-01-028-4060
Primary Part Number403766
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Outside Diameter0.753 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4030-00-874-442731118 INTERCHANGEABLE
Hook Logging Line
Hyster-Yale Group, Inc.
2915-00-981-763040589-1 INTERCHANGEABLE
Parts Kit,valve,cur
Meggitt North Hollywood Inc
4820-01-392-8690NC403766 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
405891 Telemechanics Inc (USA)
405891 American Telephone and Telegraph Co (USA)
403766 American Telephone and Telegraph Co (USA)
403766 PRIMARY Telemechanics Inc (USA)
Related Parts
4030-00-874-4427INTERCHANGEABLE
HOOK LOGGING LINE
31118
2915-00-981-7630INTERCHANGEABLE
PARTS KIT,VALVE,CUR
40589-1
4820-01-392-8690INTERCHANGEABLE
SEAT,VALVE
NC403766

Frequently Asked Questions

What is NSN 5970-01-028-4060?

NSN 5970-01-028-4060 is a Insulator,washer, manufactured by Telemechanics Inc, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-028-4060?

NSN 5970-01-028-4060 has 4 cross-referenced part numbers: 405891 (Telemechanics Inc), 405891 (American Telephone and Telegraph Co), 403766 (American Telephone and Telegraph Co), 403766 (Telemechanics Inc).

What NSN replaces 5970-01-028-4060?

There are 3 known substitutes for 5970-01-028-4060: 4030-00-874-4427, 2915-00-981-7630, 4820-01-392-8690. Verify interchangeability with system specifications before substitution.

What are the specifications of 403766?

Key specifications for 403766: Special Features: OD LIP 0.052 IN. LG BY 0.163 IN. W IN; Outside Diameter: 0.753 INCHES NOMINAL IN; Overall Height: 0.022 INCHES NOMINAL IN. 3 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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