MIL-DTL-81905G(AS)
3.4.5 Slide fasteners. The slide fasteners (zippers) shall be brass with a short tab pull. The
slide fasteners shall conform to tables II and III of this specification and to A-A-55634 and
drawing 3926AS100 except as otherwise specified herein. The crosswise breaking strength of
slide fasteners styles 7A, and 8A shall be 190 lb minimum. The slide fasteners for the body
opening shall be type III, style 7A, size MHS and for the leg openings shall be type III, style 7A
and 8A, size MHS with S-25 retainer and pin assembly, metal 0308 with a black oxidized finish.
The slide fasteners for the thigh take-ups shall be type I, style 4, size MS and for the pockets
shall be type I, style 7, size MS. A substitute slide fastener for the body opening, the leg
openings, and the thigh take-ups shall be used only when specifically approved by the
contracting officer. The tape and the bead of all slide fasteners (including the body opening)
shall be a high temperature resistant polyamide material that has been dyed to approximately
match the color of the basic fabric specified in 3.4.1.1. The tape of the slide fastener shall have
color fastness in accordance with A-A-55634 except that "fair" colorfastness in lieu of "good"
color fastness to light will be acceptable. Slide fasteners from a supplier not identified on the
slide fastener ESA (Engineering Support Activity) source control drawing 3926AS100 shall not
be used without prior approval of the ESA. The contracting officer shall be contacted for any
substitution requests. The finish of the chain and the other metal components shall be black. All
automatic-locking sliders shall have a pin-type locking device. A thong (see 3.4.7) shall be
permanently fastened to each short tab pull with two bar-tacks.
TABLE II. Slide fasteners.
Location of
A-A-55634
Slide Fastener
Quantity
Type
Style
Size
Body opening
1
III
7A
MHS 1/
Leg opening
1
III
7A
MHS 1/
Leg opening
1
III
8A
MHS 1/
Thigh take-ups
2
I
4
MS
Pockets
2
I
7
MS
1/ The crosswise breaking strength of slide fasteners styles 7A and 8A shall be
190 lb minimum.
7
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