PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44525Igniter,spark,fuel

Unison Industries, Llc Dba Unison Industries Inc · NSN 4520-01-328-7252 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-328-7252 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-328-7252. Primary manufacturer part number: 44525.
Features
  • Igniter,spark,fuel — FSC 4520
  • Special Test Features: SPOT FACE PERMISSIBLE IF NECESSARY TO MAINTAIN THICKNESS FOR MINUMUM DIAMETER; SPOT FACE TO BE CONCENTRIC WITH DIAMETER WITHIN + OR - .01 RADIUS
  • Height: 4.670 INCHES MAXIMUM IN
  • Supplementary Features: MARKINGS SHALL INCLUDE SERIAL NUMBER AND DATE OF MANUFACTURE; IDENTIFYING CHARACTERS SHALL BE BLACK ON WHITE OR ALUMINUM BACKGROUND OR WHITE OR ALUMINUM ON BLACK BACKGROUND OR PERMANENTLY MARKED PER AS478-15B2 OR AS478-15B3; A TRANSPARENT ENVIRONMENT RESISTING COATING SHALL BE PROVIDED OVER THE IDENTIFICATION MARKING
  • Length: 5.030 INCHES MAXIMUM IN
  • Plug Design: STRAIGHT
  • Width: 2.720 INCHES MAXIMUM IN
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Igniter,spark,fuel, cataloged under National Stock Number 4520-01-328-7252, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Unison Industries, Llc Dba Unison Industries Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-328-7252
Primary Part Number44525
Item NameIgniter,spark,fuel
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerUnison Industries, Llc Dba Unison Industries Inc
StatusACTIVE
Special Test FeaturesSPOT FACE PERMISSIBLE IF NECESSARY TO MAINTAIN THICKNESS FOR MINUMUM DIAMETER; SPOT FACE TO BE CONCENTRIC WITH DIAMETER WITHIN + OR - .01 RADIUS
Height4.670 INCHES MAXIMUM IN
Supplementary FeaturesMARKINGS SHALL INCLUDE SERIAL NUMBER AND DATE OF MANUFACTURE; IDENTIFYING CHARACTERS SHALL BE BLACK ON WHITE OR ALUMINUM BACKGROUND OR WHITE OR ALUMINUM ON BLACK BACKGROUND OR PERMANENTLY MARKED PER AS478-15B2 OR AS478-15B3; A TRANSPARENT ENVIRONMENT RESISTING COATING SHALL BE PROVIDED OVER THE IDENTIFICATION MARKING
Length5.030 INCHES MAXIMUM IN
Plug DesignSTRAIGHT
Width2.720 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-044-5657335C656H02 INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-00-062-3133 INTERCHANGEABLE
Transistor
7530-00-286-69527530-00-286-6952 INTERCHANGEABLE
Book,memorandum
National Industries for the Blind
3530-00-449-4015 INTERCHANGEABLE
Feeder,sewing Machine
4310-00-938-5838A44525 INTERCHANGEABLE
Blade,rotor
Jenny Products, Inc
5961-00-946-763310947488 INTERCHANGEABLE
Transistor
U S Army Tank Automotive Command Amsta-Im-Mm
5950-00-997-8343TRS164 INTERCHANGEABLE
Transformer,power Autotransforme
The Boeing Company Div Defense
6220-01-095-2616437850C91 INTERCHANGEABLE
Lens,light
Navistar Intl Corp Truck Br Ohio Plant
2920-01-104-679244-525 INTERCHANGEABLE
Plate,ignition Contact Breaker
Thermo King Corporation Dba Phoenix Global Distirbution.
2925-01-121-07614068T45G02 INTERCHANGEABLE
Exciter,ignition
General Electric Company Dba Ge Aerospace
Cross-Reference Index
Part NumberManufacturer
44525 Unison Industries, Llc Dba Unison Industries Inc (USA)
4520PL2175973 Jednolity Indeks Materialowy - Uniform Material Index (POL)
44252 Unison Industries Llc (USA)
4068T11P02 General Electric Company Dba Ge Aerospace (USA)
Related Parts
5935-00-044-5657INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
335C656H02
5961-00-062-3133INTERCHANGEABLE
TRANSISTOR
7530-00-286-6952INTERCHANGEABLE
BOOK,MEMORANDUM
7530-00-286-6952
3530-00-449-4015INTERCHANGEABLE
FEEDER,SEWING MACHINE
4310-00-938-5838INTERCHANGEABLE
BLADE,ROTOR
A44525
5961-00-946-7633INTERCHANGEABLE
TRANSISTOR
10947488
5950-00-997-8343INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
TRS164
6220-01-095-2616INTERCHANGEABLE
LENS,LIGHT
437850C91
2920-01-104-6792INTERCHANGEABLE
PLATE,IGNITION CONTACT BREAKER
44-525
2925-01-121-0761INTERCHANGEABLE
EXCITER,IGNITION
4068T45G02
4510-01-311-8140INTERCHANGEABLE
STRAINER,WASTE DRAIN
643-00-3
5998-01-356-4709INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
44252

Frequently Asked Questions

What is NSN 4520-01-328-7252?

NSN 4520-01-328-7252 is a Igniter,spark,fuel, manufactured by Unison Industries, Llc Dba Unison Industries Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-328-7252?

NSN 4520-01-328-7252 has 4 cross-referenced part numbers: 44525 (Unison Industries, Llc Dba Unison Industries Inc), 4520PL2175973 (Jednolity Indeks Materialowy - Uniform Material Index), 44252 (Unison Industries Llc), 4068T11P02 (General Electric Company Dba Ge Aerospace).

What NSN replaces 4520-01-328-7252?

There are 12 known substitutes for 4520-01-328-7252: 5935-00-044-5657, 5961-00-062-3133, 7530-00-286-6952 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 44525?

Key specifications for 44525: Special Test Features: SPOT FACE PERMISSIBLE IF NECESSARY TO MAINTAIN THICKNESS FOR MINUMUM DIAMETER; SPOT FACE TO BE CONCENTRIC WITH DIAMETER WITHIN + OR - .01 RADIUS; Height: 4.670 INCHES MAXIMUM IN; Supplementary Features: MARKINGS SHALL INCLUDE SERIAL NUMBER AND DATE OF MANUFACTURE; IDENTIFYING CHARACTERS SHALL BE BLACK ON WHITE OR ALUMINUM BACKGROUND OR WHITE OR ALUMINUM ON BLACK BACKGROUND OR PERMANENTLY MARKED PER AS478-15B2 OR AS478-15B3; A TRANSPARENT ENVIRONMENT RESISTING COATING SHALL BE PROVIDED OVER THE IDENTIFICATION MARKING; Length: 5.030 INCHES MAXIMUM IN. 8 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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