PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4681Insulator,washer

Keystone Electronics Corp · NSN 5970-01-099-0194 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-099-0194 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-099-0194. Primary manufacturer part number: 4681.
Features
  • Insulator,washer — FSC 5970
  • Material: MICA OVERALL
  • Style Designator: ROUND, FLAT
  • Outside Diameter: 0.625 INCHES NOMINAL IN
  • Inside Diameter: 0.187 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Keystone Electronics Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Mica Overall construction
General Description

The Insulator,washer, cataloged under National Stock Number 5970-01-099-0194, 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 Keystone Electronics Corp. Government technical data includes 4 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
NSN5970-01-099-0194
Primary Part Number4681
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerKeystone Electronics Corp
StatusACTIVE
MaterialMICA OVERALL
Style DesignatorROUND, FLAT
Outside Diameter0.625 INCHES NOMINAL IN
Inside Diameter0.187 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-01-018-38324681 INTERCHANGEABLE
Transformer,special
Sartron, Inc
6145-01-066-6800TWC-78-1 INTERCHANGEABLE
Cable,radio Frequency
Trompeter Electronics, Inc.
4820-01-202-3466 INTERCHANGEABLE
Valve,restrictor Check
6675-01-275-7909 INTERCHANGEABLE
Cutting Block
7530-01-285-64704681 INTERCHANGEABLE
Paper,tabulating Machine,continu
Inmac Usa Microwarehouse Inc of Connecticut
6130-01-706-00131000227510 INTERCHANGEABLE
Adapter,power Supply
L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West
Cross-Reference Index
Part NumberManufacturer
4681 PRIMARY Keystone Electronics Corp (USA)
Related Parts
5950-01-018-3832INTERCHANGEABLE
TRANSFORMER,SPECIAL
4681
6145-01-066-6800INTERCHANGEABLE
CABLE,RADIO FREQUENCY
TWC-78-1
4820-01-202-3466INTERCHANGEABLE
VALVE,RESTRICTOR CHECK
6675-01-275-7909INTERCHANGEABLE
CUTTING BLOCK
7530-01-285-6470INTERCHANGEABLE
PAPER,TABULATING MACHINE,CONTINU
4681
6130-01-706-0013INTERCHANGEABLE
ADAPTER,POWER SUPPLY
1000227510

Frequently Asked Questions

What is NSN 5970-01-099-0194?

NSN 5970-01-099-0194 is a Insulator,washer, manufactured by Keystone Electronics Corp, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-099-0194?

NSN 5970-01-099-0194 has 1 cross-referenced part number: 4681 (Keystone Electronics Corp).

What NSN replaces 5970-01-099-0194?

There are 6 known substitutes for 5970-01-099-0194: 5950-01-018-3832, 6145-01-066-6800, 4820-01-202-3466 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4681?

Key specifications for 4681: Material: MICA OVERALL; Style Designator: ROUND, FLAT; Outside Diameter: 0.625 INCHES NOMINAL IN; Inside Diameter: 0.187 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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