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203931-1 — INSULATOR,BOWL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

203931-1: INSULATOR,BOWL.

The INSULATOR,BOWL is a the manufacturer industrial component. Key specifications include material: STEEL ELECTRICAL TERMINATION, overall_length: 4.032 INCHES MINIMUM AND 4.391 INCHES MAXIMUM IN, shoulder_depth: 0.453 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN, flange_thickness: 0.250 INCHES MAXIMUM IN, outside_diameter: 2.688 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN, identification_code_color: WHITE. This part is cataloged in the U.S.

Government catalog under NSN 5970-01-186-2192, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
203931-1
NSN: 5970-01-186-2192
FSC: 5970 — Electrical Insulators and Insulating Materials
CAGE: 07601 — CERAMTEC NORTH AMERICA DBA CERAMASEAL DIV HERMETIC PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL ELECTRICAL TERMINATION
overall_length4.032 INCHES MINIMUM AND 4.391 INCHES MAXIMUM IN
shoulder_depth0.453 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
flange_thickness0.250 INCHES MAXIMUM IN
outside_diameter2.688 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN
identification_code_colorWHITE
thread_class_and_location2A ELECTRICAL TERMINATION A
height_above_mounting_surface3.579 INCHES MINIMUM AND 3.797 INCHES MAXIMUM IN
surface_treatment_and_locationELECTRICAL TERMINATION NICKEL PLATED AND MOUNTING FACILITY NICKEL AND MOUNTING FACILITY SILVER AND SHIELD GLAZED
electrical_termination_quantity4
screw_thread_diameter_and_location0.312 ELECTRICAL TERMINATION INCHES NOMINAL
screw_thread_quantity_per_inch_and_location24 ELECTRICAL TERMINATION
NSN5970-01-186-2192
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATOR,BOWL TITLE COMPONENT PN 203931-1 MFR INSULATOR,BOWL
KEY FEATURES
•
SCREW THREAD DIAMETER AND LOCATION: 0.312 ELECTRICAL TERMINATION INCHES NOMINAL
•
SURFACE TREATMENT AND LOCATION: ELECTRICAL TERMINATION NICKEL PLATED AND MOUNTING FACILITY NICKEL AND MOUNTING FACILITY SILVER AND SHIELD GLAZED
•
IDENTIFICATION CODE COLOR: WHITE
•
HEIGHT ABOVE MOUNTING SURFACE: 3.579 INCHES MINIMUM AND 3.797 INCHES MAXIMUM IN
•
ELECTRICAL TERMINATION QUANTITY: 4
•
FLANGE THICKNESS: 0.250 INCHES MAXIMUM IN
•
SCREW THREAD QUANTITY PER INCH AND LOCATION: 24 ELECTRICAL TERMINATION
TECHNICAL CHARACTERISTICS
SCREW THREAD DIAMETER AND LOCATION0.312 ELECTRICAL TERMINATION INCHES NOMINAL
SURFACE TREATMENT AND LOCATIONELECTRICAL TERMINATION NICKEL PLATED AND MOUNTING FACILITY NICKEL AND MOUNTING FACILITY SILVER AND SHIELD GLAZED
IDENTIFICATION CODE COLORWHITE
HEIGHT ABOVE MOUNTING SURFACE3.579 INCHES MINIMUM AND 3.797 INCHES MAXIMUM IN
ELECTRICAL TERMINATION QUANTITY4
FLANGE THICKNESS0.250 INCHES MAXIMUM IN
SCREW THREAD QUANTITY PER INCH AND LOCATION24 ELECTRICAL TERMINATION
OVERALL LENGTH4.032 INCHES MINIMUM AND 4.391 INCHES MAXIMUM IN
SCREW THREAD SERIES DESIGNATOR AND LOCATIONELECTRICAL TERMINATION UNF
OUTSIDE DIAMETER2.688 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5970 — Electrical Insulators and Insulating Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5970-00-001-1330 5970-00-001-1357 5970-00-001-1418 5970-00-001-1420 5970-00-001-1472 5970-00-001-1476 5970-00-001-1477 5970-00-001-1479
SUBSTITUTES & CROSS-REFERENCES 1
C5000346-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 203931-1?
203931-1 is a INSULATOR,BOWL.
What parts can replace 203931-1?
There is 1 known substitute for 203931-1: C5000346-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 203931-1?
203931-1 is cataloged in the U.S. Government catalog under NSN 5970-01-186-2192. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.