This is a spool of 400 2 Conductor 24 AWG Silver Plated Cross-linked Modified ETFE Cable Wire made by Judd Wire, part # M27500-24SE2S23. He have various spools, some of the spools are various lengths, like 250 and 140 for example, but all are 400' or more. 

M27500 cable products are composed of mil spec inner conductors, single or double shields and single or double jackets. This milspec cable is ideal for use in aircraft and ground support equipment due to its ability to operate in a broad range of temperatures. In addition to being a defense and aerospace cable, this high performance, milspec cable is used in a wide range of general purpose electrical applications.

Shield Type: Braid

Jacket Color: White

# of Conductors: 2 CONDUCTOR

Specification: NEMA WC 27500 (M27500)

Size: 24 AWG

Operating Temperature: 200°C (Max.)

Printed: YES

Voltage: 600 Volts RMS

Insulation Type: XL-ETFE - Cross Linked Ethylene Tetrafluoroethylene

Cond. Material: Silver Plated High Strength Copper Alloy

Jacket Material: XL-ETFE - Cross Linked Ethylene Tetrafluoroethylene

Stranded/Solid: Stranded

ROHS: YES

M27500 Code: SE - AS22759/35

Shield Material: Silver Plated Copper

Master Cross Reference Data (MCRD) - shows alternate part numbers for a national stock number   NSN Description MCRL Information Part and Contact Information

6145011956010 CABLE,POWER,ELECTRICAL INC: 00232 HMIC: N ESDC: ENAC: Cancelled By: Part # MCRL Information CAGE Code Phone Fax Company Name Address M27500-24SE2S23 ISC: 6 RNVC: 2 RNCC: 3 DAC: E 1P787 NATIONAL ELECTRICAL MFRS ASSN DBA NEMA 2101 L ST NW SUITE 300 Washington DC 20037-1526" M27500-24SE2S23 ISC: 6 RNVC: 9 RNCC: 5 DAC: 4 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M MIL-C-27500 ISC: 6 RNVC: 9 RNCC: 5 DAC: 4 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M NEMA WC27500 ISC: 6 RNVC: 1 RNCC: 3 DAC: E 1P787 NATIONAL ELECTRICAL MFRS ASSN DBA NEMA 2101 L ST NW SUITE 300 Washington DC 20037-1526" NEMA-WC27500 ISC: 6 RNVC: 1 RNCC: 3 DAC: E 1P787 NATIONAL ELECTRICAL MFRS ASSN DBA NEMA 2101 L ST NW SUITE 300 Washington DC 20037-1526"

Technical Characteristics - detailed information such as measurements and material type for national stock numbers

NSN Item Name Technical Characteristics 6145-011956010 CABLE,POWER,ELECTRICAL MRC Requirements Characteristics PMLC PRECIOUS MATERIAL AND LOCATION SURFACE ALL CONDUCTORS SILVER AND SURFACE SHIELD BRAID SILVER CXFK VOLTAGE RATING 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS PRMT PRECIOUS MATERIAL SILVER SFTT SURFACE TREATMENT SILVER CORE CONDUCTOR ALL CONDUCTORS BLNZ STRAND QUANTITY PER CONDUCTOR 19 ALL CONDUCTORS STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTM B298 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR ALL CONDUCTORS CXDC ROUND CONDUCTOR SIZE 24 AWG ALL CONDUCTORS CXCW CONDUCTOR FORM STRANDED ALL CONDUCTORS HUES COLOR WHITE 1ST POSITION COVER ALL CONDUCTORS CXDQ CONDUCTOR ARRANGEMENT AND QUANTITY 2 SINGLES ABJH TEMP RATING 200.0 DEG CELSIUS AAGR CROSS-SECTIONAL SHAPE STYLE ROUND AMQN CONDUCTOR QUANTITY 2 HUES COLOR WHITE 1ST POSITION JACKET CABLE CXDG STRAND AWG SIZE PER CONDUCTOR 36 ALL CONDUCTORS ASGF TRACER COLOR BLUE FIRST TRACER SECOND CONDUCTOR