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Military Specification Nylon Thread- Physical Characteristics (A-A-59826)

Types:
Type I – Twisted, unbounded, multiple cord, soft finish
Type II – Twisted, bonded, multiple cord
Type III – Bonded, monocord
Type IV – Hand-sewing twist, waxed finish
Type V – Buttonhole twist, hand-sewing, waxed finish
Type VI – Tailoring, twisted multiple cord, soft finish
Type VII – Quilting thread, coreless cocoon bobbins and top thread, twisted multiple cord, soft finish
Classes:
Class A – Normal purpose
Class B – Non-wicking (Type I or II)
TABLE I. Physical characteristics – Types I.

Tex Government Letter size or Number size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
16 00 2 1.8 30
21 A 3 2.8 30
30 AA 2 or 3 4.0 30
45 B 2 or 3 6.0 30
70 E 3 9.0 30
90 F 3 or 4 11.8 30
135 FF 3 17.5 35
210 3 3 27.0 35
270 4 3 36.0 35
350 5 3 45.0 35
400 6 3 54.0 35
600 8 3 72.0 35

TABLE II. Physical characteristics – Type II.

TABLE I-1. Physical characteristics – Type II. Tex Government Letter size or Number size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
16 00 2 1.8 30
21 A 3 2.8 30
30 AA 2 or 3 4.0 30
45 B 2 or 3 6.0 30
70 E 3 9.0 30
90 F 3 or 4 11.8 30
135 FF 3 17.5 35
210 3 3 27.0 35
270 4 3 36.0 35
350 5 3 45.0 35
400 6 3 54.0 35
600 8 3 72.0 35

TABLE III. Physical characteristics – Type III.

Tex (Sizes) Government Letter size or Number size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
16 00 1 1.8 35
27 A 1 2.8 35
35 AA 1 4.0 35
45 B 1 6.0 35
70 E 1 9.0 35
90 or 105 F 1 11.8 35
135 FF 1 17.5 35
150 3 1 24.0 35
270 4 1 36.0 35
350 5 1 45.0 35
400 6 1 54.0 35
600 8 1 72.0 35

TABLE IV. Physical characteristics – Type IV.

Tex (Sizes) Government Letter size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
35 A 2 3.5 35
45 C 2 5.7 35

TABLE V. Physical characteristics – Type V.

Tex (Sizes) Government Number size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
180 6 3 20.0 35
150 8 3 16.0 35
135 10 3 14.0 35

TABLE VI. Physical characteristics – Type VI.

Tex (Sizes) Government Letter size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
24 0 2 or 3 2.8 35
30 B 2 or 3 4.0 35
90 F 3 or 4 10.0 35

TABLE VII. Physical characteristics – Type VII.

Tex (Sizes) Government Letter size Plies Breaking strength, lbs. (min.) Elongation, % (max.)
21 00 2 1.8 35
24 A 2 or 3 2.5 35
30 AA 3 4.0 35
50 B 2 6.0 35

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