PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JB-503Motor,alternating Current

Security Engineered Machinery Co., Inc. · NSN 6105-01-281-0300 · FSC 6105 · No Item Name Available
Verified by PartsTable
NSN 6105-01-281-0300 — this item is cataloged by the U.S. Government under National Stock Number 6105-01-281-0300. Primary manufacturer part number: JB-503.
Features
  • Motor,alternating Current — FSC 6105
  • Connection Type and Voltage Rating in Volts: 220.0 LINE TO NEUTRAL SINGLE INPUT
  • 2 verified cross-references
  • Primary manufacturer: Security Engineered Machinery Co., Inc.
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Motor,alternating Current, cataloged under National Stock Number 6105-01-281-0300, is classified within Federal Supply Class 6105 (No Item Name Available) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Security Engineered Machinery Co., Inc.. Government technical data includes 1 verified specification, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6105-01-281-0300
Primary Part NumberJB-503
Item NameMotor,alternating Current
FSC / FSG6105 / 61 — No Item Name Available
ManufacturerSecurity Engineered Machinery Co., Inc.
StatusACTIVE
Connection Type and Voltage Rating in Volts220.0 LINE TO NEUTRAL SINGLE INPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
5961-01-408-6782J503 INTERCHANGEABLE
Semiconductor Device,diode
Siliconix Incorporated Div Siliconix
Cross-Reference Index
Part NumberManufacturer
J503 Security Engineered Machinery Co., Inc. (USA)
JB-503 PRIMARY Security Engineered Machinery Co., Inc. (USA)
Related Parts
5961-01-408-6782INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
J503

Frequently Asked Questions

What is NSN 6105-01-281-0300?

NSN 6105-01-281-0300 is a Motor,alternating Current, manufactured by Security Engineered Machinery Co., Inc., classified under FSC 6105 (No Item Name Available). Status: active.

What are the part numbers for NSN 6105-01-281-0300?

NSN 6105-01-281-0300 has 2 cross-referenced part numbers: J503 (Security Engineered Machinery Co., Inc.), JB-503 (Security Engineered Machinery Co., Inc.).

What NSN replaces 6105-01-281-0300?

There is 1 known substitute for 6105-01-281-0300: 5961-01-408-6782. Verify interchangeability with system specifications before substitution.

What are the specifications of JB-503?

Key specifications for JB-503: Connection Type and Voltage Rating in Volts: 220.0 LINE TO NEUTRAL SINGLE INPUT. 1 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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