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U\)This specification covers conductor-insulated, jacketed, electrical cords used to fabricate combination headset-microphone extension cords and microphone extension cords for installation in defense aircraft equipped with intercommunication sets.

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MIL-DTL-5898H

TABLE VII. First article inspection.

Inspection

Requirement

Verification paragraph

Conductor:

3.4

Strands, conductors, wrap

Insulation

Material

Physical requirements

3.4.4.1

4.6.1 and 4.6.12

Insulation thickness

Outside diameter

Color

Copper braid

4.6.1 and 4.6.7.3

Staycord:

3.6

Material

4.6.1

Breaking strength

4.6.8

Dimensions

4.6.1

Conducting cotton

3.7.1b

4.6.1

Cabling:

3.7.1 through 3.7.5

4.6.1

Conductors

Lay

Filler

Wrap

Jacket

3.8

4.6.1

Jacketing compound

3.8.1

4.6.1 and 4.6.12

Jacket wall thickness

3.8.2

4.6.1

Cord:

Outside diameter

Identification

Wrap

Environmental

Tensile strength/elongation/set

Unaged

Air-aged

Oil immersion

Flammability

Ozone resistance

Flexing, cord

Flexing, braid

Fungus resistance

Insulation shrinkage

Cold bend

Electrical; cord:

Conductor resistance

Insulation resistance

Dielectric strength

Isolation

Workmanship

1/ The ozone-resistance test is not required if polyurethane or a crosslinked-polyolefin material is

used for the jacketing compound.

4.5.1.1 Unit of product. The unit of product shall be a continuous length of cord, not to exceed

550 feet in length.