NSN 4520-01-328-7252, 4520013287252
IGNITER,SPARK,FUEL

Federal Supply Classification: FSC 4520 - Space and Water Heating Equipment
National Item Identification Number: NIIN 013287252
Codification Country: United States
Item Name Code: INC 33715
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: We have 2 qualified suppliers

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DLMS^® Summary

National Stock Number 4520-01-328-7252

National Stock Number (NSN) 4520-01-328-7252, or NIIN 013287252, (igniter,spark,fuel) was assigned November 6, 1990 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 5 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 27, 2020, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 33715. [AN ITEM HAVING ONE OR MORE ELECTRODES ARRANGED TO FORM AN AIR GAP ACROSS WHICH AN ELECTRIC SPARK IS INTRODUCED AND DISCHARGED TO IGNITE FUEL AND AIR MIXTURES IN SPACE HEATERS, FURNACES, AND THE LIKE. EXCLUDES:SPARK PLUG; GLOW PLUG; AND ELECTRODE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520013287252 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

HEIGHT: (HGTH) 4.670 INCHES MAXIMUM
LENGTH: (ABRY) 5.030 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) EXCITER, IGNITION
PLUG DESIGN: (AXNM) STRAIGHT
SPECIAL FEATURES: (FEAT) RECEPTACLE SHALL MEET THE INTERFACE REQUIREMENTS OF MIL-DTL-83723/88H; SHELL SIZE 12, PIN INSERT 3, KEYWAY 6; CONNECTOR DESIGN MUST CONFORM WITH THE REQUIREMENTS DEFINED IN M50TF2238 CL-A; WEIGHT NOT TO EXCEED 2.5LBS
SPECIAL TEST FEATURES: (SPCL) SPOT FACE PERMISSIBLE IF NECESSARY TO MAINTAIN THICKNESS FOR MINUMUM DIAMETER; SPOT FACE TO BE CONCENTRIC WITH DIAMETER WITHIN + OR - .01 RADIUS
SUPPLEMENTARY FEATURES: (SUPP) 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
WIDTH: (ABGL) 2.720 INCHES MAXIMUM