1、20 November 1979 SUPERSEDING MIL-I-l7988B(SA) 10 June 1973 MILZTAY SPECIFICATION INSIGNIA; CAP AND HAT, GENERAL, SPECIFICATION FOR This specification is approved for use by the Navy Clothing and Textile Research Facility (NU), and is available for use by all Departments and Agencies of the Departmen
2、t of Defense. I. SCOPE 1.1 Scope. This specification covers the requirements for insignia (metal and embroidered) in standard and miniature sizes, along with mounts and bands as applicable for caps and hats worn by male and female personnel of the Navy and Coast Guard. 1.2 Classification. The insign
3、ia as specified on the applicable Military sheet or mounts and bands when applicable, shall be as specified (see 2.1. and 6.2). 2, APPLICABLE DOCUMENTS 2.1 Issue of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this s
4、pecification to the extent specified herein. SPECIFICATIONS Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Navy Clothing type III, class 2; or type IV, class 1, of ML-B-593. The braid shall be
5、dyed to match Blue Shade 3228, (NAVY) or Blue Shade 3362 (Coast Guard), as applicable, and shall finish 29 inches in length (minimum), exclusive of fraying. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-L7788C ALI 7777906 0381043 9 II _- 3.4.
6、1.5 Leatherette. The leatherette used to back metal insignia mounts, shall be either of a fabric or paper base conforming to the require- - ments specified in 3.4.1.5.1 and 3.4.1.5.2. 3.4.1.5.1 Fabric base. The leatherette shall be made of any suitable woven or knitted cotton.materia1, vinyl coated
7、and embossed with a simulated leather effect on one side only. weight of not less than 14 ounces per square yard, and shall show a minimum of “good“ fastness to crocking and water. Testing shall be performed as specified in 4.3.1. The fabric shall have a finished 3.4.1.5.2 Paper base., The leatheret
8、te shall consist of a polyvinyl chloride film bonded or laminated to a latex impregnated (30-35 percent by weight) cellulose pulpboard sheet with a suitable adhesive. The polyvinyl chloride film shall be black in color, embossed on one side only, with a finished thickness of 0.009 (2 0.0005) inches.
9、 the polyvinyl chloride film shall show a minimum of “good“ fastness to crocking and water. The latex impregnated pulpboard sheet, shall have a finished thickness of 0.030 (2 0.0015) inches. Testing shall be performed as specified in 4.3.1 In addition, 3.4.1.6 Cloth, buckram, cotton. The cotton buck
10、ram used in the construction of embroidered mounts, shall be heavily sized and of a construction suitable for the purpose intended. or two plies, natural or black in color. When black is applicable, the buckram material shall show a minimum of “good“ fastness to water. Testing shall be performed as
11、specified in 4.3.1. The buckram may be of one e 3.4.2 Thread, rayon. The rayon yarn used for accents of embroidered insignia, shall be of a continuous filament, regenerated cellulose type, and of a color and size to match the guide sample. performed as specified in 4.3.1. Testing shall be 3.4.3. Emb
12、roidery material, metallic. The metallic embroidery materials shall conform to the requirements of Type I, classes 1, 2, 3, and 6 and Type IT, classes 1 through 6, of MIL-E-17568. 3.4.4 Copper base alloys 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
13、-,-,-MIL-I-L77B8C 84 7773706 038104Lt O - MIL- I-17988C (Nu) 3.4.4.1 Composition. All metal insignia shall be fabricated from any of the copper alloys specified in table I, and shall conform to the applicable composition as indicated when tested as specified in 4.3.1. The copper alloy used shall be
14、roll polished, free from pits; scale (including red oxide); dents; nicks; scratches; segregations; and foreign inclusions that cannot be removed in later processing. Table I - Chemical composition of copper base alloys (percent) Alloy Copper Nickel Lead Iron Manganese Zinc Others (max.) (max.) (mx.
15、) (mx. 1 Yellow 64.0 to O. 15 0.05 Remainder 0.15 brass 68.5 Red brass 84.0 to - 0.05 0.05 - Remainder O. 15 86.0 Nickel 63.0 to 16.5 to 0.10 O. 25 Ob50 Remainder - silver 66.5 19.5 Nickel silver (pin 53.5 to 16.5 to 0.05 0.25 - Remainder O. 50 only) 56.5 19.5 3.4.5 w. 3.4.5.1 Gold-filled metal. Whe
16、n gold filled brass is specified, there shall be a sheet of not less than 1/20, 10 Karat gold affixed (front only), to the surface of a commercial copper base alloy (see 4.3.1). 3.4.5.2 Gold-plating. The gold for plating shall be 24 Karat. 3.4.6 Silver. 3.4.6.1 Sterling silver. When specified, sterl
17、ing silver insignia shall contain not less than 92.5 percent pure silver (see 4.3.1). 3.4.6.2 Silver-filled. When specified, silver-filled insignia shall be 1/20 silver-filled (front only) over a copper-base alloy. The silver shall contain not less than 92.5 percent pure silver (see 4.3.1). 6 Provid
18、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-17988C (NU) 3.4.6.3 Silver-plating. The silver for plating shall contain not less than 99.5 percent pure silver (see 4.3.1). . 3.4.7 Solder. Solder shall be of a hard (silver alloy) compound, having a m
19、elting point of not less than 1075% degrees Fahrenheit (see 4.3.1). 3,4.8 Lacquer. The lacquer to be used in applicable processes, shall be any suitable pale and clear synthetic lacquer. lacquer shall not be permitted (see 4.3.1). The use of pigmented 3.4 Design. 3.4.1 Metal insignia. The design of
20、the metal insignia shall be of the exact replica as the Government-loaned hub when applicable or conform to guide and approved contractors samples (see 3.2 thru 3.2.2). 3.4.2 Embroidered insignia. The design of the embroidered insignia, shall be in accordance with the guide sample (see 3.2). 3.5 Con
21、struction. 3.5.5 Stamping, trimming, and piercing. When applicable, the insignia shall be struck in a manner that shall insure a well defined die-struck edge. struck outline. drag; steps; and rough edges. The stamping, trimming, and piercing operations, shall not damage or distort the design or alte
22、r the shape of the insignia. Insignia shall be trimmed, and when applicable, pierced to the die- All edges shall be clean and smooth, free from burrs; 3.5.2 Forcer. When specified on the applicable specification sheet, a forcer may be used to bring up portions of the design of metal insignia. 3.5.3
23、Attaching devices. Attaching devices for metal insignia shall be as specified in 3.5.3.1, 3.5.3.2, or on the applicable specification sheet. Material requirements shall conform to Table I. Attaching devices shall be located as specified on the applicable specification sheet and approved guide sample
24、. 3.5.3D1 Clutch fastener and prong. The prong and clutch fastener type shall be as shown in igure 1 and as specified herein. The prong shall be made of nickel silver and shall be soldered or electronically fused to the back of the insignia as specified. from any type brass. not be removable by hand
25、 except when the clutch wings are depressed, When the size of the insignia is a limiting factor, the clutch fasteners shall be 3l8 (+ - 1/32) inch in diameter. Clutches may be made When tested as specified in 4.4.1, the clutch shall 7 Provided by IHSNot for ResaleNo reproduction or networking permit
26、ted without license from IHS-,-,-NIL-I-17788C 84 = 7777906 0381046 4 W MIL- I- 17 9886 (NU) 3.5.3.2 Screw post, thumb nut, and tooth lock washer The screw post, thumb nut, and tooth lock washer type fastener shall be made of yellow brass, and shall conform to the dimensions as shown in figure 1 or o
27、n the applicable specification sheet. The screw pos,t shall be soldered or electronically fused to the back of the insignia as specified. 3.5.4 Soldering or electronic fusion Soldered or fused joints shall be strong, clean, smooth and free of burned or reduced areas, Soldered joints shall be free of
28、 excess solder and flux. material specified in 3.4.7 shall be used. 4.4.2 soldered prongs shall not separate from the insignia. shall not separate when tested as specified in 4.4.3. When solder is used, Taen tested as specified in Fused joints 3.5.5 Backs of insignia Unless otherwise specified on th
29、e applicable specification sheet, the backs of all insignia shall be flat. When a forcer is used to bring up the design, the impression of the forcer on the back of the insignia shall be regular, symmetrical, and leave no sharp corners or edges. 3.6 Finish Unless otherwise specified on the applicabl
30、e specification sheet, the front and edges (surfaces visible from the front) of all insignia shall be finished to match the guide or approved contrac.tors sample for color and finish (see 3.2 and 3.2.2). 3.6.1 Gold plating Gold specified in 3.4.5.2, shall be used for gold plating. Prior to plating,
31、the insignia shall be cleaned of matter that may affect the gold plating. over the entire surface, and there shall be no cut through; peeled; or blistered plattng. The base metal shall be either yellow brass or red brass specified in 3.4.4.1 or as specified on the applicable specification sheet. whi
32、te metal as an undercoating for gold shall not be permitted. visible chemical reaction shall appear when tested as specified in 4.4.4. When gold-filled material is specified, the insignia shall be given a flash of gold. The plating shall be non-porous and continuous The baclk of the insignia shall b
33、e bright and clean. The use of No *3.6.2 Silver platinp; all matter that may affect the silver plating. silver plating shall be as specified in 3.4.6.3. hot nickel silver underplated a minimum of 0.00025 inch in thickness. Nickel silver items will not require nickel underplating. items shall not be
34、underplated. The silver plating shall be a minimum of 0.003 inch in thickness, and shall be smooth; fine grained; adherent; and free from visible defects. Items made of silver filled material, shall be tested on their reverse side for compliance with the silver plating thickness requirement. Items m
35、ade of brass, shall be silver thickness tested on their reverse side (see 4.3.1). Prior to plating, the insignia shall be clean of The silver used for Brass items shall be Silver filled 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-379BC Li
36、 9999906 0383047 b m - * MIL-1-17 988C (NU) * 3.6.3 Rhodium plating. When rhodium plating is specified, any copper base alloy may be used which has an underplating of nickel a minimum of 0.00025 inch thick. (see 4.3.1). before plating. When tested as specified in 4.4.4, no visible chemical reaction
37、shall appear. to rhodium plating. The nickel plated device shall be burnished Silver-filled material shall be nickel plated prior 3.6.4 Lacquering. Insignia shall be lacquered as specified on the applicable specification sheet. level, adherent, and free from dust, lint, and other foreign inclusions.
38、 When tested as specified in 4.4.5, there shall be no change in the lacquered face of the insignia except for a slight yellowing of the highlights and not more than two spots, each less than 1/16 inch largest dimension affecting appearance. adhere to the lacquered surf ace. The lacquer film shall be
39、 continuous, When tested as specified in 4.4.6, the tissue paper shall not 3.7 Mounts. 3.7.1 Design and dimensions. The design and dimensions of the mounts shall be as shown in Figures 2 and 3. 3.7.2 Stitches, seams, and stitching. Stitches, seams, and stitching types shall conform to PED-STD-751. s
40、titching shall be backstitched a minimum of 114 inch. All thread breaks and ends of 3.8 Construction of mounts. * 3.8.1 Metal insignia mounts. The mount shall consist of three (3) full lengths of material, consisting of the impregnated paperboard stay inserted between the pplicable background cloth
41、and leatherette material. The background cloth which covers the entire face and curved edge of the mount, shall be as specified in 3.4.1.1.1 thru 3.4.1.1.3 as applicable, The leatherette which covers the entire back of the mount, shall be as specified in 3.4.1.5, Assemble as specified: a. Cement the
42、 impregnated paperboard stay to the applicable background cloth, turning the edge of the cloth over the stay 1/4 (2 1/16) inch on the curved section and cement to the stay forming a finished edge. b. The straight edges of the mount shall be unfinished (not covered by background cloth or leatherette
43、material). c. Cement the leatherette material to the impregnated paperboard stay. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_. I MIL-I-L7988C 8Li 7777906 0382048 8 d. Stitch along the curved section of the mount approximately 1/16 inch from t
44、he edge and extend the stitching to the bottom of the mount (see Figure 2). Stitch Stitches per Type inch 301 12-14 e. All male mounts shall be centered and sewn to the band (see 3.3.1.2), by stitching around the base 1/16 to 118 inch from the straight edges and across the back (see Figure 2). Stitc
45、h Stitches per Tvnp inch 301 12-14 Needle and bobbin thread for stitching shall be cotton, conforming to type IC2, ticket no. 00, 3-p1yY of V-T-276. The color of the thread shall be Black AA, cable no. 66043 (Navy) and Blue AT, cable no. 66060 (Coast Guard). than 114 inch. with the screw posts of th
46、e applicable metal insignia. For the Coast Guard1 the perforation shall be 118 k .O5 inch in diameter and centered 1 118 k 1/16 inch from the top finished edge and 1 3/16 5 1/32 inch from the side finished edge. -k 3.8.2 Embroidered insignia mounts. The mount shall be constructed of three (3) layers
47、 of materials, consisting of the cotton buckram inserted between two (2) plies of the background material. The background cloth as applicable, shall be as specified in 3.4.1.1.1 thru 3.4.1.1.3. The cotton buckram shall be as specified in 3.4.1.6. Assemble as follows: Ends of all stitching shall be b
48、ackstitched not less Perforations shall be made in the mount to correspond Unless otherwise specified, female metal mounts do not require bands. a. Superimpose a ply of the background cloth to the cotton buckram, folding the background cloth over all cotton buckram around the curved edge approximate
49、ly 114 inch and cement. b. Center the mount on the band and join the components together by the applicable embroidered insignia. c. Superimpose and cement the other ply of background cloth to the cotton buckram for the mount backing. d. Stitch the mount approximately 1/16 inch around the curved edge. Stitch Seam Stitches per TypeType inch I- 301 SSb-1 10-12 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
