PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5254-1Heater,aircraft

Pacific Design Technologies, Inc. Dba Pacific Design Technologies · NSN 1660-01-696-6840 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-696-6840 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-696-6840. Primary manufacturer part number: 5254-1.
Features
  • Heater,aircraft — FSC 1660
  • Width: 2.90 INCHES NOMINAL IN
  • Voltage in Volts: 270.0
  • Current Type: DC
  • 1 verified cross-reference
  • Primary manufacturer: Pacific Design Technologies, Inc. Dba Pacific Design Technologies
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,aircraft, cataloged under National Stock Number 1660-01-696-6840, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Pacific Design Technologies, Inc. Dba Pacific Design Technologies. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-01-696-6840
Primary Part Number5254-1
Item NameHeater,aircraft
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerPacific Design Technologies, Inc. Dba Pacific Design Technologies
StatusACTIVE
Width2.90 INCHES NOMINAL IN
Voltage in Volts270.0
Current TypeDC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-510-4770 INTERCHANGEABLE
Screw,machine
6105-00-893-122128432902 INTERCHANGEABLE
Parts Kit,electric Motor
Hydro-Aire Aerospace Corp
5307-00-928-336752541 INTERCHANGEABLE
Stud,plain
Stewart & Stevenson Power Products Llc
5330-01-065-885252541 INTERCHANGEABLE
Gasket
Paccar Winch Inc Dba Paccar Winch Division
6110-01-168-4417 INTERCHANGEABLE
Starter,motor
3120-01-437-6014 INTERCHANGEABLE
Bushing,sleeve
4920-01-513-6826 INTERCHANGEABLE
Angle Lube Fitting,
8120-01-628-718352541 INTERCHANGEABLE
Cylinder,compressed Gas,refriger
Amerex Corporation Dba Getz Manufacturing Div Amerex Corporation Dba Getz Manufacturing
Cross-Reference Index
Part NumberManufacturer
5254-1 PRIMARY Pacific Design Technologies, Inc. Dba Pacific Design Technologies (USA)
Related Parts
5305-00-510-4770INTERCHANGEABLE
SCREW,MACHINE
6105-00-893-1221INTERCHANGEABLE
PARTS KIT,ELECTRIC MOTOR
28432902
5307-00-928-3367INTERCHANGEABLE
STUD,PLAIN
52541
5330-01-065-8852INTERCHANGEABLE
GASKET
52541
6110-01-168-4417INTERCHANGEABLE
STARTER,MOTOR
3120-01-437-6014INTERCHANGEABLE
BUSHING,SLEEVE
4920-01-513-6826INTERCHANGEABLE
ANGLE LUBE FITTING,
8120-01-628-7183INTERCHANGEABLE
CYLINDER,COMPRESSED GAS,REFRIGER
52541

Frequently Asked Questions

What is NSN 1660-01-696-6840?

NSN 1660-01-696-6840 is a Heater,aircraft, manufactured by Pacific Design Technologies, Inc. Dba Pacific Design Technologies, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-696-6840?

NSN 1660-01-696-6840 has 1 cross-referenced part number: 5254-1 (Pacific Design Technologies, Inc. Dba Pacific Design Technologies).

What NSN replaces 1660-01-696-6840?

There are 8 known substitutes for 1660-01-696-6840: 5305-00-510-4770, 6105-00-893-1221, 5307-00-928-3367 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5254-1?

Key specifications for 5254-1: Width: 2.90 INCHES NOMINAL IN; Special Features: 1.40 POUNDS LBS; Voltage in Volts: 270.0; Current Type: DC. 5 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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