PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

487903Insulator,bushing

L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. · NSN 5970-00-308-5305 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-308-5305 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-308-5305. Primary manufacturer part number: 487903.
Features
  • Insulator,bushing — FSC 5970
  • Outside Diameter: 0.469 INCHES NOMINAL IN
  • First Counterbore Depth: 0.147 INCHES NOMINAL IN
  • Shank Outside Diameter: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
  • Style Designator: SHOULDER
  • Shank Height: 2.100 INCHES NOMINAL IN
  • Unable to Decode: UNABLE TO DECODE
  • First Counterbore Diameter: 0.299 INCHES MINIMUM AND 0.304 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,bushing, cataloged under National Stock Number 5970-00-308-5305, 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 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 8 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-308-5305
Primary Part Number487903
Item NameInsulator,bushing
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerL3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
StatusACTIVE
Outside Diameter0.469 INCHES NOMINAL IN
First Counterbore Depth0.147 INCHES NOMINAL IN
Shank Outside Diameter0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Style DesignatorSHOULDER
Shank Height2.100 INCHES NOMINAL IN
Unable to DecodeUNABLE TO DECODE
First Counterbore Diameter0.299 INCHES MINIMUM AND 0.304 INCHES MAXIMUM IN
Inside Diameter0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
7520-00-407-6804SC-B-19000 INTERCHANGEABLE
Pen,recording
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5365-00-516-6189800777-P INTERCHANGEABLE
Spacer,sleeve
Rexnord Industries Llc
5305-01-099-040016073 INTERCHANGEABLE
Screw
Hyster-Yale Group, Inc.
5930-01-372-09668614-00002 INTERCHANGEABLE
Switch,pressure
Bae Systems Integrated Defense Solutions Inc.
3655-01-375-561248790-3 INTERCHANGEABLE
Turboexpander Assembly
Hexco International Dba Acd
Cross-Reference Index
Part NumberManufacturer
16-0-73 Allard Nazarian Group, Inc. Dba Granite State Manufacturing (USA)
487903 PRIMARY L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
Related Parts
7520-00-407-6804INTERCHANGEABLE
PEN,RECORDING
SC-B-19000
5365-00-516-6189INTERCHANGEABLE
SPACER,SLEEVE
800777-P
5305-01-099-0400INTERCHANGEABLE
SCREW
16073
5930-01-372-0966INTERCHANGEABLE
SWITCH,PRESSURE
8614-00002
3655-01-375-5612INTERCHANGEABLE
TURBOEXPANDER ASSEMBLY
48790-3

Frequently Asked Questions

What is NSN 5970-00-308-5305?

NSN 5970-00-308-5305 is a Insulator,bushing, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-308-5305?

NSN 5970-00-308-5305 has 2 cross-referenced part numbers: 16-0-73 (Allard Nazarian Group, Inc. Dba Granite State Manufacturing), 487903 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).

What NSN replaces 5970-00-308-5305?

There are 5 known substitutes for 5970-00-308-5305: 7520-00-407-6804, 5365-00-516-6189, 5305-01-099-0400 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 487903?

Key specifications for 487903: Outside Diameter: 0.469 INCHES NOMINAL IN; First Counterbore Depth: 0.147 INCHES NOMINAL IN; Overall Height: 2.310 INCHES NOMINAL IN; Shank Outside Diameter: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN. 9 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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