PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H-4001Insulator,washer

Union Carbide Corp Electronic Specialty Products Group · NSN 5970-01-083-3209 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-083-3209 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-083-3209. Primary manufacturer part number: H-4001.
Features
  • Insulator,washer — FSC 5970
  • Material and Location: OVERALL BORON NITRIDE, GRADE HBR, UNION CARBIDE CORP
  • Style Designator: ROUND, FLAT
  • Inside Diameter: 0.210 INCHES NOMINAL IN
  • Outside Diameter: 1.000 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Union Carbide Corp Electronic Specialty Products Group
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Insulator,washer, cataloged under National Stock Number 5970-01-083-3209, 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 Union Carbide Corp Electronic Specialty Products Group. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-01-083-3209
Primary Part NumberH-4001
Item NameInsulator,washer
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerUnion Carbide Corp Electronic Specialty Products Group
StatusACTIVE
Material and LocationOVERALL BORON NITRIDE, GRADE HBR, UNION CARBIDE CORP
Style DesignatorROUND, FLAT
Inside Diameter0.210 INCHES NOMINAL IN
Outside Diameter1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5970-00-001-9383G3M27C58-1 INTERCHANGEABLE
Insulator,washer
Gasket Manufacturing Co.
5985-00-477-0681 INTERCHANGEABLE
Antenna
Cross-Reference Index
Part NumberManufacturer
H-4001 PRIMARY Union Carbide Corp Electronic Specialty Products Group (USA)
62-898 002 Microwave Power Products, Inc. Div Microwave Power Products Division (USA)
H-4001 Ucar Carbon Co Inc (USA)
62-898-002 Communications & Power Industries International Inc. Zweigniederlassung Ismaning (DEU)
Related Parts
5970-00-001-9383INTERCHANGEABLE
INSULATOR,WASHER
G3M27C58-1
5985-00-477-0681INTERCHANGEABLE
ANTENNA

Frequently Asked Questions

What is NSN 5970-01-083-3209?

NSN 5970-01-083-3209 is a Insulator,washer, manufactured by Union Carbide Corp Electronic Specialty Products Group, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-083-3209?

NSN 5970-01-083-3209 has 4 cross-referenced part numbers: H-4001 (Union Carbide Corp Electronic Specialty Products Group), 62-898 002 (Microwave Power Products, Inc. Div Microwave Power Products Division), H-4001 (Ucar Carbon Co Inc), 62-898-002 (Communications & Power Industries International Inc. Zweigniederlassung Ismaning).

What NSN replaces 5970-01-083-3209?

There are 2 known substitutes for 5970-01-083-3209: 5970-00-001-9383, 5985-00-477-0681. Verify interchangeability with system specifications before substitution.

What are the specifications of H-4001?

Key specifications for H-4001: Material and Location: OVERALL BORON NITRIDE, GRADE HBR, UNION CARBIDE CORP; Style Designator: ROUND, FLAT; Inside Diameter: 0.210 INCHES NOMINAL IN; Special Features: SUPPLIED W/NEMA G-10 CENTERING GASKET. 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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