PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21706Insulator,washer

Eaton Corporation Dba Eaton Inoac · NSN 5970-00-403-8185 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-403-8185 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-403-8185. Primary manufacturer part number: 21706.
Features
  • Insulator,washer — FSC 5970
  • Style Designator: ROUND, FLAT
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Inside Diameter: 0.510 INCHES NOMINAL IN
  • Outside Diameter: 1.000 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Eaton Corporation Dba Eaton Inoac
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Insulator,washer, cataloged under National Stock Number 5970-00-403-8185, 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 Eaton Corporation Dba Eaton Inoac. Government technical data includes 4 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-403-8185
Primary Part Number21706
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac
StatusACTIVE
Style DesignatorROUND, FLAT
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Inside Diameter0.510 INCHES NOMINAL IN
Outside Diameter1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5120-00-293-079221706 INTERCHANGEABLE
Punch,drive Pin
Mayhew Steel Products Inc
2925-00-433-513221706 INTERCHANGEABLE
Sleeve Grommet
Vse Aviation, Inc.
5315-00-496-5354 INTERCHANGEABLE
Key,machine
5306-01-194-2865CB27466-028 INTERCHANGEABLE
Bolt,machine
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
10314589 Nimikkeistokeskus Ncb Finland (FIN)
21706 Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems (USA)
21706 Dnc Officine Srl (ITA)
21706 PRIMARY Eaton Corporation Dba Eaton Inoac (USA)
Related Parts
5120-00-293-0792INTERCHANGEABLE
PUNCH,DRIVE PIN
21706
2925-00-433-5132INTERCHANGEABLE
SLEEVE GROMMET
21706
5315-00-496-5354INTERCHANGEABLE
KEY,MACHINE
5306-01-194-2865INTERCHANGEABLE
BOLT,MACHINE
CB27466-028

Frequently Asked Questions

What is NSN 5970-00-403-8185?

NSN 5970-00-403-8185 is a Insulator,washer, manufactured by Eaton Corporation Dba Eaton Inoac, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-403-8185?

NSN 5970-00-403-8185 has 4 cross-referenced part numbers: 10314589 (Nimikkeistokeskus Ncb Finland), 21706 (Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems), 21706 (Dnc Officine Srl), 21706 (Eaton Corporation Dba Eaton Inoac).

What NSN replaces 5970-00-403-8185?

There are 4 known substitutes for 5970-00-403-8185: 5120-00-293-0792, 2925-00-433-5132, 5315-00-496-5354 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21706?

Key specifications for 21706: Style Designator: ROUND, FLAT; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Overall Height: 0.020 INCHES NOMINAL IN; Inside Diameter: 0.510 INCHES NOMINAL IN. 5 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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