PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CLASS 52-1Insulator,suspension

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 5970-00-227-9050 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-227-9050 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-227-9050. Primary manufacturer part number: CLASS 52-1.
Features
  • Insulator,suspension — FSC 5970
  • Identification Code Color: BROWN
  • Mounting Hole Diameter: 0.875 INCHES NOMINAL IN
  • Distance Between Legs: 0.688 INCHES NOMINAL IN
  • Leg Length: 0.688 INCHES NOMINAL IN
  • First Mounting Hole Spacing: 5.500 INCHES NOMINAL IN
  • Distance From Inside of Mounting Hole to Outside Surface: 0.500 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S)
Applications
  • Applications requiring Porcelain Shank construction
General Description

The Insulator,suspension, cataloged under National Stock Number 5970-00-227-9050, 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 American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-227-9050
Primary Part NumberCLASS 52-1
Item NameInsulator,suspension
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
Identification Code ColorBROWN
Mounting Hole Diameter0.875 INCHES NOMINAL IN
Distance Between Legs0.688 INCHES NOMINAL IN
Leg Length0.688 INCHES NOMINAL IN
First Mounting Hole Spacing5.500 INCHES NOMINAL IN
Distance From Inside of Mounting Hole to Outside Surface0.500 INCHES NOMINAL IN
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S)
Pin Diameter0.625 INCHES NOMINAL IN
Outside Diameter6.000 INCHES NOMINAL IN
Nondefinitive Spec/std Data1 CLASS AND 4 TYPE
Style DesignatorCLEVIS
MaterialPORCELAIN SHANK
MaterialSTEEL CENTER STUD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4720-00-066-4759 INTERCHANGEABLE
Hose Assembly,nonmetallic
5998-00-105-6574 INTERCHANGEABLE
Circuit Card Assembly
1560-00-165-488186012 INTERCHANGEABLE
Tab,trim,aircraft
Northrop Grumman Systems Corporation
4730-00-222-01502256803PC1 INTERCHANGEABLE
Tee,pipe to Tube
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5306-00-728-831860022 INTERCHANGEABLE
Bolt,internal Wrenching
Prestolite Electric Inc
5970-00-768-7516CLASS 52-4 INTERCHANGEABLE
Insulator,suspension
American National Standards Institute Incorporated Dba American National Standards Institute
6685-00-785-09051725-12 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Rochester Sensors, Llc
5310-00-826-59648599166-012 INTERCHANGEABLE
Nut,plain,hexagon
General Motors Corp
5935-00-901-8876 INTERCHANGEABLE
Retainer,electrical Connector
5950-00-995-47407745118P14 INTERCHANGEABLE
Reactor
Lockheed Martin Corporation Div Rms
Cross-Reference Index
Part NumberManufacturer
L1510 Joslyn Corp (USA)
16583 Valcom Manufacturing Group Inc (CAN)
804 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
ANSI C29.2 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
CLASS 52-1 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
C907-1001 La Chance Ltd (USA)
C29-2CLASS52-1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
86012 Knox Porcelain Corp (USA)
C907-0001 La Chance Ltd (USA)
HH-1-435 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
32433 Ohio Brass Co (USA)
16583 Ngk-Locke, Inc. (USA)
Related Parts
4720-00-066-4759INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5998-00-105-6574INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
1560-00-165-4881INTERCHANGEABLE
TAB,TRIM,AIRCRAFT
86012
4730-00-222-0150INTERCHANGEABLE
TEE,PIPE TO TUBE
2256803PC1
5306-00-728-8318INTERCHANGEABLE
BOLT,INTERNAL WRENCHING
60022
5970-00-768-7516INTERCHANGEABLE
INSULATOR,SUSPENSION
CLASS 52-4
6685-00-785-0905INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
1725-12
5310-00-826-5964INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8599166-012
5935-00-901-8876INTERCHANGEABLE
RETAINER,ELECTRICAL CONNECTOR
5950-00-995-4740INTERCHANGEABLE
REACTOR
7745118P14
6625-01-055-5334INTERCHANGEABLE
CARTRIDGE TRANSPORT
86012
2920-01-167-9143INTERCHANGEABLE
LEAD SET,IGNITION,ENGINE
4240435

Frequently Asked Questions

What is NSN 5970-00-227-9050?

NSN 5970-00-227-9050 is a Insulator,suspension, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-227-9050?

NSN 5970-00-227-9050 has 12 cross-referenced part numbers: L1510 (Joslyn Corp), 16583 (Valcom Manufacturing Group Inc), 804 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), ANSI C29.2 (American National Standards Institute Incorporated Dba American National Standards Institute), CLASS 52-1 (American National Standards Institute Incorporated Dba American National Standards Institute) and 7 more.

What NSN replaces 5970-00-227-9050?

There are 12 known substitutes for 5970-00-227-9050: 4720-00-066-4759, 5998-00-105-6574, 1560-00-165-4881 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CLASS 52-1?

Key specifications for CLASS 52-1: Identification Code Color: BROWN; Mounting Hole Diameter: 0.875 INCHES NOMINAL IN; Distance Between Legs: 0.688 INCHES NOMINAL IN; Leg Length: 0.688 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-227-9050 still in active supply?

NSN 5970-00-227-9050 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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