MIL-PRF-19207G
3.4.5 Extraction of fuses. Unless otherwise specified (see 3.1), fuses shall be extracted from the
fuseholder body, captive with the cap assembly. Fuses shall be removable from the cap assembly
without use of any tools.
3.4.6 Mounting hardware. Unless otherwise specified (see 3.1), fuseholders shall be provided with
mounting hardware. Mounting hardware shall be a corrosion-resistant metal or shall be a metal treated to
resist corrosion (see 6.9). Unless otherwise specified (see 6.2), mounting hardware, including flat gaskets
and sealing washers if applicable, and the terminal hardware shall be assembled on the fuseholder or
placed in a sturdy bag attached to the fuseholder. Where mounting nuts or plates are used, a threaded
metal insert may be used.
3.4.7 Threaded parts. Unless otherwise specified (see 3.1), threaded terminals and mounting screws
threads around the body of a fuseholder designed for single hole mounting need not comply, but shall
match the threads of the engaging nuts.
3.4.8 Butt contacts. The fuse contacting surface of butt type contacts shall have a diameter not less
than 75 percent of the nominal diameter of the ferrule of the specified test fuse (see 3.1).
3.4.9 Solder-lug terminals. Unless otherwise specified (see 3.1), solder-lug terminals shall be treated
to facilitate soldering. Coatings such as hot dip or pre-plating are acceptable (see 4.6.3.1, 4.6.21, 6.5).
3.4.10 Riveting. Rivets shall be properly set, flanged, or rolled, with no evidence of fatigue imposed
upon the rivets. There shall be no evidence of cracking, chipping, peeling, denting, or other deformation
of the material riveted. Riveted electrical joints shall be soldered after riveting.
3.5 Performance.
3.5.1 Enclosure. The degree of fuseholder enclosure seal shall be in accordance with MIL-STD-108,
or equivalent test methods as approved by the qualifying activity, and shall be as specified in 3.5.1.1
3.5.1.1 Unsealed. Unsealed fuseholders shall not be required to meet an enclosure requirement.
3.5.1.2 Dripproof. Dripproof fuseholders shall seal against leakage into the fuseholder or into the
enclosure upon which it is mounted (see 4.6.16.2).
3.5.1.3 Splashproof. Splashproof fuseholders shall seal against leakage into the fuseholder or into the
enclosure upon which it is mounted (see 4.6.16.3).
3.5.1.4 Watertight. Watertight fuseholders shall seal against leakage into the fuseholder or into the
enclosure upon which it is mounted (see 4.6.16.4).
3.5.1.5 Watertight and body sealed. Watertight and body sealed fuseholders shall seal against
leakage into the fuseholder or into the enclosure upon which it is mounted (see 4.6.16.5).
3.5.2 Terminal strength. When fuseholders are tested as specified in 4.6.3, the terminals shall not
break or loosen and there shall be no damage to the fuseholder body.
3.5.3 Torque strength of inserts, threaded terminals, and molded threads. Inserts and threaded
terminals shall not loosen , strip, or deform the threads (see 4.6.20). Fixed terminals shall not rotate.
Single hole mounted fuseholders shall not break, strip threads, rotate or pull through the mounting holes.
Gaskets shall not be damaged and fuseholder caps shall not bind. Fuseholders shall not depend upon
gaskets or O-rings to serve as mounting flanges.
3.5.4 Dielectric withstanding voltage. There shall be no breakdown, flashover, arcing, or current flow in
excess of 1 milliampere (mA) (see 4.6.4).
3.5.5 Dielectric withstanding voltage (reduced barometric pressure). When specified (see 3.1),
fuseholders shall be tested as specified in 4.6.5. There shall be no breakdown, flashover, arcing, or
current flow in excess of 1 mA.
5
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business