MIL-PRF-23419 Fuse: Cartridge, Instrument Type, General Specification ForThis specification covers the general requirements and test procedures for instrument type fuses designed for the protection of electrical, electronic, and communication equipment on direct current \(dc\) and alternating current \(ac\) \(up to 400 hertz \(Hz\)\) circuits.

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MIL-PRF-23419H

TABLE III. Group A inspection.

Inspection

Requirement paragraph

Test method paragraph

Subgroup 1

Continuity 1/

Resistance 2/

Voltage drop 2/

Subgroup 2

Visual and mechanical

examination

1/ Not required when resistance or voltage drop test is conducted.

2/ When applicable (see 3.1).

4.6.1.2.1 Subgroup 1 tests. Subgroup 1 tests shall be performed on 100 percent of the product

supplied under this specification. All rejected parts shall be removed from the lot and shall not be

furnished on the contract. Lots having more than 5 percent total rejects shall not be furnished on the

contract.

4.6.1.2.1.1 Manufacturers production inspection. If the manufacturer performs tests equal to or more

stringent than those specified in subgroup 1, table III as the final step of this production process, group A,

subgroup 1 inspection may be waived and the information resulting from the manufacturers production

tests may be used instead. Authority to waive the subgroup 1 inspection shall be granted by the

qualifying activity only. The following criteria must be complied with:

a. Tests conducted by the manufacturer during production shall be clearly identical to or more stringent

than that specified for subgroup 1. Test conditions shall be equal to or more stringent than those

specified for subgroup 1.

b. Manufacturer subjects 100 percent of the product supplied under this specification to their production

tests.

c. The parameters measured and the failure criteria shall be the same as or more stringent than those

specified herein.

d. The lot rejection criteria is the same as or more stringent than that specified herein.

e. The manufacturer shall make available all information concerning the test procedures and

instrumentation used in his production tests. The manufacturer shall also make available to the

qualifying activity all test information resulting from production tests.

4.6.1.2.2 Subgroup 2. Subgroup 2 tests shall be performed on an inspection lot basis in accordance