1、MIL-H-SLLLLB 42 M 777770b 0234534 b Y 7 f- 5 -04-3 - MIL-H-51111B( EA) 16 September 1974 SUPERSEDING MIL-H-jlI.llA( MU) 24 August 1970 MILITARY SPECIFICATION HARNESS, HEAD, ci5 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This spec
2、ification covers one tyy-pe of head harness for chemical- biological masks. 2. APPLICABLE DoChPJVI“T 2.1 Government documents. The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein: SPE
3、CIFICATIONS FEDERAL JJ-W-i55 - Webbing, Textile, (Cotton, Elastic). STANDARDS FEDERAL FED-STD-123 - Marking for Domestic Shipping (Civil Agencies). MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. DRAWINGS US ARML ARMAMENT COMMAND EDGENOOD ARSENAL C5-2-1021 - Harne
4、ss, Head, Ci5 - Assembly and Detail. B5-2-1649 - Clip, End, Strap.- - _- - FSC 4240 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H- 51111B ( EA) (Copies of specifications, standards , drawings , and publications re- quired by suppliers in co
5、nnection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 3 . RF,QUIREIENTS 3.1 Materials and components. All materials and components cited on Drawing C5-2-1021 or on the subsidiary drawings shall conform to the speci- f
6、ications thereon or the specific characteristics set forth on the drawings, except as follows: 3.1.1 Elastic webbing (JJ-W-155). 3.1.1.1 Tension. The tension shall be 1.65 pounds minimum and 3.25 pounds maximum in lieu of the tension values specified in table III of JJ-W-155 3.1.1.2 Flexing. The web
7、bing shall show no rupture of elastic threads nor more than 10 percent permanent set after flexing as specified in 4.2.4.1. 3.2 Manufacture and assembly. The head harness shall be manufactured and. assembled in accordance with Drawing C5-2-1021. 3.2.1 Pads, The inner and outer pads shall be evenly c
8、ut and shall coincide without wrinkles or puckers when stitched together with the elastic webbing between them. 3.2.2 Stitching. When stitching is not continuous thread, it shall be backstitched no less than one-half inch. In sewing, the thread tension shall be properly maintained so that there will
9、 be no loose stitching, and the lock shall be embedded in the center of the sewn material. 3.2.3 Strap eEd clips. When attaching strap end clips, the elastic webbing shall be inserted the full depth of the clip. in assembling the clips to the webbing shall not be sufficient to cut, break, or materia
10、lly weaken the webbing. flat, tight and compact assembly at the end of the webbing, ness of clinch assembly shall be tested in accordance with 4.2.4.2. The pressure used The clip shall form a smooth, The tight- 3.3 Workmansh as specified in (a) above. The samples shall then be marked and tested 4.2.
11、4.2 Strap end clip tightness. Grasp strap in one hand 1 inch from clip. removed from strap. Hold for 5 seconds. Slipping or pulling off the clip shall be evidence of looseness. clips. Looseness of any one of the clips on head harness shall constitute a defective unit. Grasp clip in other hand and pu
12、il straight out till elasticity is Perform test on all six straps having 5. PIIEPARATION FOR DELIVERY 5.1 Packaging, packing and marking, interplant shipment (see 6.6). The head harness shall be packaged and packed to provide adequate protection from physical damage from the supply source to the fir
13、st receiving activity for immediate use or rurther processing. compliance with the rules and regulations applicable to the mode of trans- portation. include the contractors name, address, and contract number. Shipping containers shall be in Marking shall be in conformance with FED-STD-123 and shall
14、5.2 Repair part. When this item is procured for storage and issue as a repair part, preservation, packaging, packing, and marking shall be as specified on the packaging data sheet which is identified by its National stock number. 6. NOTES 6.1 Intended use. This head harness is intended for use with
15、ABC-M25Al Tank Chemical-Biological mask and the ABC424 Aircraft Chemical-Biological Mask. 6.2 Ordering data. Procurement documents should specify the title, number and date of this specification. 6.3 Tests. It is suggested that destructive tests (see 4.2.4) on the webbing be conducted prior to manuf
16、acture of the head harness. 6.4 Toxicity. Any question raised regarding toxicity should be re- ferred to the departmental medical authority. curement, the Surgeon General will act as advisor to the procuring agency. In the case of Army pro- 5 Provided by IHSNot for ResaleNo reproduction or networkin
17、g permitted without license from IHS-,-,-flIL-H-SLLZLB 42 W 777970b 0234537 5 MLL-H-.ZllllB( EX) 6.5 International interest. Certain provisions of this specification When amendment, revision or cancellation of this specification are the subject of international standardization agreement QSTAG-23-6 a
18、nd 234. is proposed which will affect or violate the international agreemerit concerned, the preparing activity will take appropriate reconciliation action through international standardization channels including depart- mental standardization offices, if required. 6.6 Interplant shipments. Packagin
19、g for supplies and materials which will not enter the military supply system. Typical interplant shipments are shipments from a vendor to a subcontractor or a prime contractor, or from a subcontractor to a prime contractor, or from a vendor or contractor to a military arsenal or plant. 6.7 Figure 1.
20、 Figure 1 is a miniature reproduction of assembly drawing and is attached for information only. Custodian : Ariqy-u Preparing activity: Army-u Project No. 4240-A642 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rn o c o z B L. i -. I f I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
