SF-257

View detailed technical data, stock status, and sourcing information for: SF-257
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2920 Nonaircraft Engine Electrical System Components

National Stock Number

2920-00-504-1362

Item Name Code

15293

Assigment Date

01/01/1963 (63 years ago)

unable to decode impregnation material, 2.875 inches nominal single winding outside width, unable to decode covering material, 4.000 inches nominal single winding outside length, 0.750 inches nominal single winding thickness

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thickness: 0.750 inches nominal single winding
Covering Material: unable to decode
Outside Width: 2.875 inches nominal single winding
Outside Length: 4.000 inches nominal single winding
Impregnation Material: unable to decode
Conductor Turn Quantity: 10.00 single winding
Conductor Wire Width: 0.281 inches nominal single winding
Conductor Wire Thickness: 0.040 inches nominal single winding
Coil Inside Length: 2.562 inches nominal single winding
Coil Inside Width: 1.312 inches nominal single winding
Coil Type And Quantity: 1 curved
Terminal Type And Quantity: 2 flat wire lead all terminals
Fsc Application Data: starter,engine,electrical,nonaircraft

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2920-00-353-9728	No Name Available	01/01/1963
2920-00-354-0036	No Name Available	01/01/1963

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
1905870	Motor Field Winding
2A-4503	Motor Field Winding
7529203	Motor Field Winding
7743903	Motor Field Winding
866G1	Motor Field Winding
A7743903	Motor Field Winding
SF-257	Motor Field Winding

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2920-00-504-1362?

The FSCG of the NSN 2920-00-504-1362 is 2920

Does the NSN 2920-00-504-1362 have a Schedule B code assigned?

Yes, the Schedule B code is 8503005000

Does NSN 2920-00-504-1362 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2920-00-504-1362 contain precious materials?

Precious metal content is unknown

Does NSN 2920-00-504-1362 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 2920-00-504-1362 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963