1、- -. -. MIL-M-45765 10 7779306 0307667 T Il s-3 7-03 . MIL-Mi45965 (WV) 28 June 1974 SUPERSEDING See Section 6 MILITARY SPECIFICATION MORTAR, 60MM: M19 This specification is approved for use by all Departments and Agencies of the Department of Defense 1. SCOPE 1.1 cannon M19 with mount M5 and basepl
2、ate. This specification covers one type of high-angle fire mortar 2. APPLICABLE DOCUMENTS 2.1 for bids or request for proposal form a part of the specification to the extent specified herein. The following documents of the issue in effect on date of invitation SPECIFICATIONS Military MIL-C-13931 - C
3、annons, General Specification for MIL-P-14232 - Parts, Equipment and Tools for Army Material, Packaging MIL-1-45607 - Inspection Equipment, Acquisition, Maintenance and and Packing of Disposition of STANDARDS Mi 1 it ar y MIL-STD-109 - Quality Assurance Terms and Definitions MIL-STD-129 - Marking fo
4、r Shipment and Storage -* . THIS bOCUMENT CONTAINS .K PRGS I FSC 1010 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-45965 LO m 9779706 0307670 b m MIL-M-45965 (WV) PUBLICATIONS . U. S. Army Armament Command EPL 7238469 - Engineering Parts Lis
5、t, Mount; 60MM Mortar: M5 EPL 7238503 - Engineering Parts List, Cannon, 60MM Mortar: M19 DL 7229669 - List of Gages, 60MM Mortar: M19 DL 7238469 - Index of Inspection Equipment, Mount Assembly; 60MM Mortar: M5 DL 7238503 - Index of Inspection Equipment, Cannon Assembly; 60MM Mortar: M19 LSQAP 653624
6、0 - List of SQAPS, Baseplate Assembly; 60MM Mortar MLSQAP 7238469 - Master List of SQAPS, Mount Assembly; 60W Mortar: M19 MLSQAP 7238503 - Master List of SQAPS, Cannon Assembly, 60MM Mortar: M19 PDS P6732010 - Packaging Data Sheet; 60MM Mortar: M19 (Copies of specifications, standards, drawings and
7、publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer). 3. REQUIREMENTS 3.1 First article. a first article. Cannon, Mount, Baseplate or any part or portion thereof. specified (see
8、6.2.1), the first article shall be included in the first article package (see 5.1). 3.2 Materials, design and construction. to the drawings listed in Engineering Parts List EPL 7238503 (Cannon Assembly), EPL 7238469 (Mount Assembly), to this specification, and to MIL-C-13931. When specified in the c
9、ontract, the contractor shall submit The article shall be specified in the contract. For example, Unless otherwise The cannon and the mount shall conform 3.3 Material soundness. Material of the tube, cap, housing, firing mechanism, mount (bipod), and baseplate shall be free from cracks and shall com
10、ply with the requirements of the applicable drawings and Specifications. 3.4 Assembly of mating parts. contact shoulder in the cap, the firing pin bushing to the adapter and the adapter to the housing shall be as specified on the applicable drawing. Assembly of parts shall also conform to the requir
11、ements of MIL-C-13931. 3.4.1 Firing pin protrusion. the base plug bushing shall be as follows: Assembly of the breech face of the tube to the Protrusion of the firing pin from the face of a. Drop-fire: 0.047 to 0.101 inch, incl. b. Lever-fire: 0.085 to 0.101 inch, incl. 3.5 Functioning after assembl
12、y Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.5.1 Elevating mechanism. and clevis pivot. All parts shall be aligned as specified on the applicable drawings. elevating mechanism shall function through the entire operating range. Backlash shall n
13、ot exceed 1/8 turn. (D 7228725). The tube with bracket for the connector assembly, The ring retains all of the moving parts within the tube. The 3.5.2 Traversing mechanism. The bearing (B5025227) on the shouldered end of the screw-traversing (B7228286) shall be adjusted to obtain a smooth continuous
14、ly sliding fit. in the tube. Backlash shall not exceed 1/8 turn. The bearing can be adjusted to only one location Geometry of the parts determine the fit at other locations. 3.5.3 Cant mechanism. Leg, Left, Assembly (D7230150). The mechanism incorporated into this assembly shall provide a smooth, po
15、sitive adjustment throughout the range. The coil spring and washers in the nut cant adjusting assembly increase the firmness of the joint and the stability of the adjust- ment during firing. easily for preliminary leveling and shall grip the sleeve securely when the sleeve (B7230007) is tightened ma
16、nually. The sleeve (A5025237) shall move smoothly on the leg body. The bracket when not locked on the sleeve shall move 3.5.3.1 Cant mechanism adjustment. The nut, cant adjusting is connected to the sleeve (A5025237) by the ring (A5025233). The ring shall be screwed onto the nut, cant adjusting unti
17、l the end of the nut is seated on the end of the sleeve. The ring shall then be unscrewed the minimum distance necessary to permit manual rotation of the nut while the sleeve is locked against rotation. Following this adjustment, the ring and the nut, cant adjusting shall be drilled and tapped to re
18、ceive the screw (A5025235). 3.6 Performance. The mortar assembly (cannon and mount) shall be capable of withstanding the stresses of firing and functional operation under service conditions. of 6800 - + 200 psi at 70F as specified in 4.6.5. 3.6.1 Functioning. mortar assembly (cannon and mount) durin
19、g and after the testing specified in 4.6.3, 4.6.4, and 4.6.5. The cannon shall be capable of withstanding a chamber pressure There shall be no impairment in the functioning of the 3.6.2 Bore enlargement. Bore diameters (from the muzzle to a depth of 24 inches) after proof testing shall not exceed th
20、e basic (minimum) diameter specified on the drawings by more than 0.004 inch. indication of abnormal wear, damage or deformation of the bore surface. There shall be no 3.6.3 Material soundness. After completion of testing, all parts shall be free from cracks and fractures and shall comply with sound
21、ness requirements specified on the applicable drawings. 3.7 Operation. All parts shall operate without interference, erratic movement or malfunction. 3 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-45965 (WV) 3.8 Finish. 3.8.1 Surface textu
22、re. Surface texture shall be as specified in MIL-C-13931. 3.8.2 Painting. Where painting is specified for phosphate finished parts, application of supplementary oil shall be omitted. 3.9 Marking. in MIL-C-13931. Marking of parts shall be as specified on the drawings and 3,lO Workmanship. Workmanship
23、 shall be as specified in MIL-C-13931. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibiiity for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. in the contract or order, the su
24、pplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure that supplies and ser
25、vices conform to prescribed requirements. Except as otherwise specified The Government reserves the right to 4.2 Quality assurance terms and definitions. Quality assurance terms and definitions used in this specification are in accordance with MIL-STD-109. 4.3 Lots. Government representative, subjec
26、t to the provisions of MIL-C-13931. The size of lots of component parts shall be as approved by the 4.4 Classification of inspections. The inspection requirenents specified herein are classified as follows: a. First article inspection (see 4.5) b. Quality conformance inspection (see 4.6) 4.5 First a
27、rticle inspection. tion in accordance with the contract requirements. representative of the production processes to be used during quantity pro- duction. The first article shall be subjected to the quality conformance inspections specified herein and such other inspection as is necessary to determin
28、e compliance with the requirements of the contract. 4.6 Quality conformance inspection. A first article shall be submitted for inspec- The first article shall be 4.6.1 Inspection provisions. Mortars shall be inspected for conformance to the requifements of the provisions of this specification, to MI
29、L-C-13931, to the SQAPS- listed in LSQAP 6536240, MLSQAP 7238469, LSQAP 7238503 and to SQAP-APPENDIX-WVT. I , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-LI5765 LO m 7777706 0307673 L m MIL-M-45965 (WV) 4.6.1.1 Final examination. Final exam
30、ination of each mortar assembly (cannon and mount)- shall be completed after testing and prior to preservation and packaging to determine compliance with this specification, MIL-C-13931, and as specified in the contract. . 4.6.1.2 Inspection approval stamp. The application of the inspection approval
31、 stamp shall be as specified in MIL-C-13931. 4.6.2 Inspection equipment. Data lists containing drawing numbers of Govern- ment designed inspection equipment used in the-inspection of parts, sub- assemblies and assemblies are listed in DL 7238503 and DL 7238469. 4.6.2.1 Acquisition, maintenance and d
32、isposition. Unless otherwise specified, (see 6.2.1) responsibility for acquisition, maintenance and disposition of acceptance- inspection and- test equipment prescribed on the List- of Inspection Equipment DL 7238503 and DL 7238469 and for all other inspection equipment required to perform inspectio
33、n prescribed by applicable specifications, shall be in accordance with MIL-1-45607. 4.6.2.2 Accuracy of standard measuring equipment, When commercial and modified commercial inspection and test equipment is used, it shall be capable of repetitive measurements to an accuracy of 10 percent of the tota
34、l tolerance of the characteristic being inspected. 4.6.3 Examinations. 4.6.3.1 Firing pin protrusion. each firing mechanism assembly shall be inspected for the required protrusion in both the drop-fire and lever-fire modes to the dimensional requirements of 3.4.1. turn is listed in Index DL 7238503.
35、 conjunction with 4.6.4.2 Firing Mechanism Operation. 4.6.3.2 Material soundness. Each tube and base plug, bipod, and baseplate shall be magnetic-particle inspected in accordance with applicable drawings and specifications. Material not conforming to the requirements of 3.3 and to applicable drawing
36、s and specifications shall be rejected. 4.6.3.3 Workmanship, Workmanship shall be inspected in accordance with With the firing pin firmly seated in the base, Inspection shall be performed by gage listed in DL 7229669 which in This examination shall be performed in MIL-C-13931. 4.6.3.4 Marking. Marki
37、ng shall be examined in accordance with MIL-C-13931. 4.6.4 Tests. 4.6.4.J ?-Mechanism function tests. mecha,.Selection of applicable levels of preservation, packaging, and packing- (see 5.2). 7 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-
38、45965 LO m 9999906 0309676 7 W MIL-M-&965 WV) h. i. Packaging instructions for basic issue- items (see 5.3). Applicable acceptance test procedures and frequency of testing (see 4.6.5). 6.2.2 Contract data requirements. Monthly reports of the results of final examination and performance testing _. sh
39、all be specified for delivery on DD Form 1423 in the contract. 6.3 or MIL-1-45208, as appropriate, on the Management Control Systems Summary List, DD Form 1660. When warranted, the contract should specify the application of MIL-Q-9858 6.4 of MIL-1-45607 and MIL-C-45662 on the Management Control Syst
40、ems Summary List, DD Form 1660. 6.5 Supersession data. This specification includes the requirements of Purchase Description WVTPD 1053 dated 28 August 1972. Unless otherwise specified, the contract should specify the application Preparing activity : Army-WV Project Number 1010-A089 U. S. GOVERNMENT PRINTING OFFICE: 1974-603- 108/440 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
