PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9166Insulator,bowl

Lapp Insulators Llc · NSN 5970-01-155-6502 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-155-6502 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-155-6502. Primary manufacturer part number: 9166.
Features
  • Insulator,bowl — FSC 5970
  • Center Stud Length: 7.438 INCHES NOMINAL IN
  • Height Above Mounting Surface: 4.438 INCHES NOMINAL IN
  • Style Designator: DOME, FLANGED
  • Material: PORCELAIN OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Lapp Insulators Llc
Applications
  • Applications requiring Porcelain Overall construction
General Description

The Insulator,bowl, cataloged under National Stock Number 5970-01-155-6502, 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 Lapp Insulators Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5970-01-155-6502
Primary Part Number9166
Item NameInsulator,bowl
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerLapp Insulators Llc
StatusACTIVE
Center Stud Length7.438 INCHES NOMINAL IN
Height Above Mounting Surface4.438 INCHES NOMINAL IN
Style DesignatorDOME, FLANGED
MaterialPORCELAIN OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2990-00-074-88731305334H1 INTERCHANGEABLE
Muffler,exhaust
Dressta North America Ltd
5930-00-259-7159 INTERCHANGEABLE
Switch,rotary
4820-00-457-6392 INTERCHANGEABLE
Valve,pneumatic Tank
5340-01-121-00211771757-35 INTERCHANGEABLE
Clamp,loop
Honeywell Intl Inc Defense Avionics Systems
Cross-Reference Index
Part NumberManufacturer
9166 PRIMARY Lapp Insulators Llc (USA)
R-9166 Lapp Insulators Llc (USA)
Related Parts
2990-00-074-8873INTERCHANGEABLE
MUFFLER,EXHAUST
1305334H1
5930-00-259-7159INTERCHANGEABLE
SWITCH,ROTARY
4820-00-457-6392INTERCHANGEABLE
VALVE,PNEUMATIC TANK
5340-01-121-0021INTERCHANGEABLE
CLAMP,LOOP
1771757-35

Frequently Asked Questions

What is NSN 5970-01-155-6502?

NSN 5970-01-155-6502 is a Insulator,bowl, manufactured by Lapp Insulators Llc, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-155-6502?

NSN 5970-01-155-6502 has 2 cross-referenced part numbers: 9166 (Lapp Insulators Llc), R-9166 (Lapp Insulators Llc).

What NSN replaces 5970-01-155-6502?

There are 4 known substitutes for 5970-01-155-6502: 2990-00-074-8873, 5930-00-259-7159, 4820-00-457-6392 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9166?

Key specifications for 9166: Center Stud Length: 7.438 INCHES NOMINAL IN; Height Above Mounting Surface: 4.438 INCHES NOMINAL IN; Style Designator: DOME, FLANGED; Material: PORCELAIN OVERALL. 4 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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