1、flIL-C-11605B 10 779990h - 0273725 O W - - s- 3 9-0.3 MIL-C-11605B (WV) 24 JUNE 1974 SUPERSEDING 25 March 1970 MIL-C-11605A (WC) MILITARY SPECIFICATION CANNON, 155 MM GUN M46 This specification is approved for use by all departments and agancies of the Department of Defense. 1. SCOPE 1.1 This specif
2、ication covers one type of gun, cannon. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on th- date of invi a ion for bids or requests for proposal form a part of this specification to the extent specified herein. SPECIFICATIONS Mi 1 it ary MIL-C-13931 - Cannons, Mortars,
3、Recoilless Rifles and Recoilless Guns; MIL-P-14232 - Parts, Equipment and Tools for Army Materiel, Packaging MIL-1-45607 - Inspection Equipment, Acquisition, Maintenance and Disposi- General Specification for and Packing of tion of STANDARDS Military MIL-STD- 109 - Quality Assurance Terms and Defini
4、tions MIL-STD-129 - Marking for Shipment and Storage FSC 1025 THIS DOCUMENT CONTAINS . .f. PAGES Licensed by Information Handling ServicesMIL-C-11605B (WV) PUBLICATIONS U.S. Army Armament Command EPL 7238947 - Engineering Parts List, Cannon, 155MM Gun M46 DL 7238947 - List of Inspection Equipment fo
5、r Cannon, 155MM Gun M46 Master LSQAP 7238947 - Master List of Supplementary Quality Assurance Pro- PDS 7238947 - Packaging Data Sheet, Cannon, 155MM Gun M46 visions for Cannon, 155MM Gun M46 (Copies of specifications, standards, drawings and publications required by suppliers in connection with spec
6、ific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 First article. When specified in the contract, the contractor shall submit a first article. be included in the first article package (see 5.1). Unless otherwise s
7、pecified (see 6.1.1), the first article shall 3.2 General requirements. ings listed in Engineering Parts List EPL specification and MIL-C-13931. Cannons and parts thereof shall conform to the draw- 7238947 and the requirements of this 3.3 Functioning, All parts shall function without interference, e
8、rratic move- ment or malfunction, 3.4 Headspace. firing block and the primer seat on the extractor shall be not.less than 0.052 inch nor more than 0.065 inch. Headspace, the distance between the front face of the closed 3.5 the protrusion of the firing pin from the front face of the firing block sha
9、ll be not less than 0,090 inch and not more than 0.107 inch. be retracted behind the front face of the firing block when the firing mechanism is in the load position, Firing pin protrusion and retraction. When the firing mechanism is fired, The firing pin shall 3.6 Performance. 3.6.1 High pressure r
10、esistance, The cannons shall be capable of withstanding chamber pressures of 54200 4 1900 pounds per square inch when tested as speci- - fied in 4.5.5. 3.6.2 Material soundness. After completion of initial production or performance testing, all parts shall be free.from cracks and fractures and shall
11、 comply with soundness requirements specified on the applicable,drawings. 2 Licensed by Information Handling Services3.6.3 Bore enlargement. proof firing no more than 8 rounds, shall not exceed the basic (minimum) diameter specified on the applicable drawing by more than the amount speci- fied in Ta
12、ble I, Bore diameters, measured across the rifle lands after 1 Table I Bore enlargement Ristance orward of 3 cal. commencement of rifling, 0,lO inch 1 inch 2 cal. to muzzle Enlargement (inch) O, 006 0.006 0.003 o. 002 NOTE: interpolate to determine the allowable bore enlargement between the distance
13、s given. 4. QUALITY ASSURANCE PROYISIONS 4.1 Responsibility for inspection, Unless otherwise specified in the con- tract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. in the contract or purchase order, the supplier may use his
14、own or any other facilities suitable for the performance of the inspection requirements speci- fied herein, unless disapproved by the Government. the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure that supplies and cer- vi
15、ces conform to prescribed requirements, 4.2 Quality assurance terms and definitions. Quality assurance terms and definltions used in this specification are in accordance with MIL-STD-109. Except as otherwise specified The Government reserves 4,3 Classification of inspection. The inspection requireme
16、nts specified herein are classified as follows: a. First article inspection (see 4.4) b. Quality conformance inspection (see 4.5) 4.4 First article inspection, tion in accordance with contract requirements. The first article shall be representative of the production process to be used during quantit
17、y production. The first article shall be subjected to the inspections, examinations, and tests specified herein and such other inspections, examinations, and tests as A first article shall be submitted for inspec- . is necessary to determine compliance with the requirements of the contract. . 4.5 Qu
18、ality conformance inspection. 4.5.1 Inspection provisions. Cannon shall be inspected for conformance to requirements of the provisins of this specification, MIL-C-13931, SQUAPs listed in Master LSQAP 11578365, and SQAP-APPENDIX-WT. 3 Licensed by Information Handling ServicesMIL-C- 11605B.(WV) 4.5.1.
19、1 Final examination. Final examination of each cannon 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. inner and outer surfaces of each finish machined tube, the breechblock, bushi
20、ng, breech ring and carrier shall be magnetic-particle tested in accordance with the applicable part drawing. means of a borescope. rejection. . The The inner surface of the tube shall be examined by Any evidence of cracks or fractures shall be cause for 4.5.1.2 Inspection approval stamp. The applic
21、ation of the inspection approval stamp shall be as specified in MIL-C-13931. 4.5.2 Inspection equipment. Data lists containing drawing numbers of Govern- ment designed inspection equipment used in the inspection of parts, subassemblies, and assemblies are listed in DL 7238947, 4.5.2.1 Acquisition, m
22、aintenance and disposition. Unless otherwise specified (see 6.1.1) responsibility for acquisition, maintenance, and disposition of acceptance inspection and test equipment prescribed on the List of Inspection Equipment DL 7238947, and for all other inspection equipment required to perform inspection
23、 prescribed by applicable specifications, shall be in accordance with MIL-1-45607. 4.5.2.2 Accuracy of standard measuring equipment. When commercial and modified comercial inspection and test equipment is used, it shall be capable of repeti- tive measurements to an accuracy of 10 percent of the tota
24、l tolerance of the characteristic being inspected. 4.5.3 Examinations. 4.5.3,l Headspace. firing mechanism mounted on the cannon. equivalent shall be used to determine compliance with the headspace requirements. The headspace shall be checked on each cannon with the Gages 8778048 and 8778049 or appr
25、oved 4.5.3.2 be measured on each firing mechanism before it is mounted on the obturator spindle of the cannon, block shall be measured with the firing mechanism in the closed and locked posi- tion. mine compliance with the firing pin protrusion requirement. shall be visually checked for compliance w
26、ith the firing pin retraction require- ment, when the firing mechanism is in the load position, mechanism to comply with the protrusion or the retraction requirement shall be cause for rejection. Firing pin protrusion and retraction. The firing pin protrusion shall Protrusion of the firing pin beyon
27、d the face of the Indicator gage 8775230 or an approved equivalent shall be used to deter- The firing pin Failure of the firing 4.5.3.3 Workmanship. Workmanship shall be examined visually in accordance with MIL-C-13931 4 Licensed by Information Handling Services4.5.4 Tests. 4.5.4.1 Functioning tests
28、. Functioning tests shall be conducted in accord- ance with MIL-C-13931 and as specified herein, cycles of operation shall be performed on each cannon, A minimum of two complete 4.5.4.2 Firing mechanism. With the firing mechanism mounted on the cannon, two primers shall be fired by the firing mechan
29、ism of each cannon: a rearward pull of the lever, and one by a rotation of the case assembly. After firing each primer, the fired primer case shall be extracted by the extractor. Evidence of binding, interference, erratic movement, malfunction and misfires caused by the firing mechanism shall be cau
30、se for rejection. one by 4.5.4.3 Breech mechanism. The breech of each cannon shall be operated manually to determine the smoothness of operation by opening and closing the breech for two cycles. The proper functioning of the breech mechanism shall be checked by working the operating lever and observ
31、ing the operation of the breechblock, breechblock-roller, breech ring, cam, counterbalance, and latching and unlatching of the operating lever. Any evidence of binding or erratic operation shall be cause for rejection. The bearing of the obturator parts shall be inspected in accordance with MIL-C-13
32、931. 4.5.5 Performance tests. acceptance testing by a Government testing activity to assure compliance with 3.6. fled by the Quality Assurance element of the procuring activity. Cannons and repair tubes shall be subject to Acceptance testing shall be in accordance with procedures speci- 4.5.5.1 Mate
33、rial soundness. After final acceptance testing, the breechblock, bushing, breech ring, carrier, and the inner and outer surfaces of the tube shall be magnetic particle tested in accordance with the applicable drawings and specifications. means of a borescope. or to applicable drawings and specificat
34、ions shall be rejected. The inner surfaces of the tube shall be examined by Material not conforming to the requirements of 3.6.2 4.5,5.2 Bore enlargement, After firing no more than eight rounds, the bore diameter across the lands of each cannon shall be measured with an air gage, a star gage, or oth
35、er approved equivalent gage. limits specified in Table I shal be cause for rejection. Enlargement exceeding the 4.5.5.3 Records. be furnished with applicable data on DA Form 2408-4 by the proving ground. Cannons or repair tubes accepted on a proof sampling basis shall be furnished with applicable da
36、ta on DA Form 2408-4 by the contractor and approved by the Government representative, The responsibility of the contractor for cannons or repair tubes which fail the firing tests shall be as specified in the contract (see 6.1.1) . Cannons or repair tubes that pass the firing tests shall 5 Licensed b
37、y Information Handling ServicesMIL-C-11605B (WV) 4.5.6 4.5.6.1 Packaging inspection. Unless otherwise specified, inspection to deter- mine compliance with cleaning, preservation, packaging, packing and marking requirements of the applicable packaging data sheets for the level designated in the contr
38、act shall be as specified in MIL-P-14232. Inspection of preparation for delivery. 5. PREPARATION FOR DELIVERY. 5.1 First article package. On each contract, a first article package shall be provided in accordance with 3.1. be unit packaged for the level of protection specified in the contract and pac
39、ked level C. MIL-P-14232 and Packaging Data Sheet P7238947. with MIL-STD-129. The first article package for the cannon shall . Unit packaging and packing shall be in accordance with Marking shall be in accordance- 5.2 Unit packaging, packing and marking, of the cannon. The cannon shall be unit packa
40、ged and packed in accordance with the requirements of MIL-P-14232 and Packaging Data Sheet P7238947 for the level of protection specified in the con- tract (see 6,l). Marking shall be in accordance with MIL-STD-129. 5.3 Unit packaging, packing and marking of repair parts. be unit packaged and packed
41、 in accordance with the requirements of MIL-P-14232 and the applicable Packaging Data Sheets for the level of protection specified in the contract see 6.1). 6. NOTES. 6.1 Ordering data. Procurement documents should specify the following: 6.1.1 Procurement requirements. Repair parts shall Marking sha
42、ll be in accordance with MIL-STD-129. a. b. Title, number and date of this specification Requirements for submission of and shipping instructions for first article (see 3.1 and 4.4) and first article package. (see 3.1 and 5.1). (1) The contract should designate the examinations and tests to b perfor
43、med by the contractor and the examinations and tests to be performed by the Government. (2) The contract should specify the sample size (i.e., the number of units) of the first article. (3) The contract should designate the inspection and test data that is required to be furnished the Government whe
44、n the contractor is required to perform either or both examinations and tests. 6 -7 - Licensed by Information Handling Services6.1.1 contd. may be performed. -,: (4) The contract should designate at whose expense a retest CS) The contract should specify that the acceptable first Any additional or ex
45、tended examinations and tests beyond article shall-be delivered in accordance with the terms of the contract, or the scope of this specification should be specified and identified as a separate item of the contract. (6) c. d. The serial numbers for the cannons and repair tube assemblies. List of ins
46、pection equipment, responsibility for acquisition, mein- Availability of inspection equipment from the Government, Extent of suppliers responsibility for Government-furnished and for tenance, and disposition thereof, if other than as specified (see 4.5.2). e. f. supplier-required final inspection eq
47、uipment. g, (see 4.5.4). Applicable acceptance test procedures and frequency of testing h. The contract should specify under what conditions simulated firing may be performed, the test equipment available, and the procedures to be followed. i. When applicable, the contract should specify the samplin
48、g plan for The levals of preservation, packaging, and packing required (see 5.2). the actual firing of repair tubes. j . k. Packaging instructions for repair parts (see 5.3). 6.1.2 Contract data requirements. Monthly reports of the results of-final examination and performance testing shall be as spe
49、cified for delivery on DD Form 1423 in the contract. 6.2 When warranted, the contract should specify the application of MIL-Q-9858 or MIL-1-45208, as appropriate, on the Management Control Systems Summary List DD Form 1660. 6.3 OZ MIL-1-45607 and MIL-C-45662 on the Management Control Systems Summary List, DD Form 1660. Unless otherwise specified, the contract should specify the application Custodian: Army - WV Preparing activity Army - WV Project No, 1025-A0.18 7 * U. S GOVERNMENT PRINTING OFFICE: 1974-603- 108/ 180 Licensed by Information Handling Services
