PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5203-4Insulator,disk

Seastrom Manufacturing Co Inc · NSN 5970-00-944-5016 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-944-5016 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-944-5016. Primary manufacturer part number: 5203-4.
Features
  • Insulator,disk — FSC 5970
  • First Hole Diameter: 0.031 INCHES NOMINAL IN
  • Style Designator: DRILLED, FLAT
  • First Hole Spacing: 0.100 INCHES NOMINAL IN
  • Material and Location: OVERALL MICA, HH-I-536
  • Second Hole Spacing: 0.200 INCHES NOMINAL IN
  • Outside Diameter: 0.350 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,disk, cataloged under National Stock Number 5970-00-944-5016, 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 Seastrom Manufacturing Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5970-00-944-5016
Primary Part Number5203-4
Item NameInsulator,disk
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerSeastrom Manufacturing Co Inc
StatusACTIVE
First Hole Diameter0.031 INCHES NOMINAL IN
Style DesignatorDRILLED, FLAT
First Hole Spacing0.100 INCHES NOMINAL IN
Material and LocationOVERALL MICA, HH-I-536
Second Hole Spacing0.200 INCHES NOMINAL IN
Outside Diameter0.350 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-358-3620608465 INTERCHANGEABLE
Strainer Element,sediment
Caterpillar Inc Div Caterpillar Defense
4810-01-312-964552-034 INTERCHANGEABLE
Parts Kit,solenoid Valve
Ge Aviation Systems, Llc
5340-01-371-5565 INTERCHANGEABLE
Bracket,mounting
9330-01-490-737652034 INTERCHANGEABLE
Plastic Sheet,laminated,decorati
Fellowes Inc
Cross-Reference Index
Part NumberManufacturer
5203-4 PRIMARY Seastrom Manufacturing Co Inc (USA)
G57SB005 Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co (USA)
Related Parts
4730-00-358-3620INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
608465
4810-01-312-9645INTERCHANGEABLE
PARTS KIT,SOLENOID VALVE
52-034
5340-01-371-5565INTERCHANGEABLE
BRACKET,MOUNTING
9330-01-490-7376INTERCHANGEABLE
PLASTIC SHEET,LAMINATED,DECORATI
52034

Frequently Asked Questions

What is NSN 5970-00-944-5016?

NSN 5970-00-944-5016 is a Insulator,disk, manufactured by Seastrom Manufacturing Co Inc, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-944-5016?

NSN 5970-00-944-5016 has 2 cross-referenced part numbers: 5203-4 (Seastrom Manufacturing Co Inc), G57SB005 (Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co).

What NSN replaces 5970-00-944-5016?

There are 4 known substitutes for 5970-00-944-5016: 4730-00-358-3620, 4810-01-312-9645, 5340-01-371-5565 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5203-4?

Key specifications for 5203-4: First Hole Diameter: 0.031 INCHES NOMINAL IN; Overall Height: 0.002 INCHES NOMINAL IN; Style Designator: DRILLED, FLAT; First Hole Spacing: 0.100 INCHES NOMINAL IN. 7 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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