1、MIL-C-6122 20 April 1950 Superseding 10 February 1944 AN-IC-96 MILITARY SPECIFICAT ION COLLIMATOR; SEXTANT, .AmMFP This specification was approved by the Departments of the Army, the Navy, and the Ab Force for use of prociirement services of the respective Departments. 1. SCOPE AND CLASSIFICATION 1.
2、1 This specification covers the requirements for one type of sextant collimator. 2. APPLICABLE SPECIFICATIONS, OTHER PUBLICATIONS, AND DRAWINGS 2.1 The following publications, of the issue in effect on date of invitation for bids, shall form a part of this specification to the extent specified herei
3、n: 2;i.i Specifications.- Federal QQ-P-b6 Plating; Cadmium (Electrodeposited) - Military MIL-P-6064 Packaging. of Lightweight Aircraft Accessories Air Force-Navy Aeronautical ANqQ-A-696 AN-P-32 Plating; Zinc AN -P-3 9 Plting; Chromium 4i-126 Screw-Threads; Standard, Aircraft Anodic Films; Corrosion-
4、Protective (for) Auminum Alloys U. S. Am 94-40645 Marking; Exterior, Domestic and Export Shipment, by Cntractors - i/ 2.1.2 Other Publications .- Bureau of Supplies arid Accounts Navy Shipment Marking Handbook - 21 2.1.3 Drawings.- Air Force-Navy Aeronautical Standard Drawkg AN5853 Collimator - Sext
5、ant i/ Applicable only to Air Force purchases. ?!/ - Applicable only to Navy purchases. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-bL22 bb = 9949906 OJ25qL5 1 MIL-C-6322 (April. 19%) (Copies of this specification and copies of other public
6、ations refergnced herein or required for Government procurement, and the Index of Military AerohSutitxl -(AN or MIL) Standards; maybe obtained upon application to the Camaan+ng General, Air Materiel Coannand, Wright-Patterson Ah? Force Base, Dayton, Ohio; or the Canmanding Officer, U, 5. Naval Air S
7、tation, Johnsvlle, Pennsylvania. ) 3. RWUIREMENTS 3.2 Materials.- Materials shall ccnfonn to applicable specifiaations as specified herein. MaterUs wKich.are not specifically designated shall be of the best camnercial quality and suitable for the purpose intended. 3.1.1 normal ServiceTK 3.2 Design a
8、nd Construc%ion.- The ooLiimator shall conform to AN5853. Construction shall b e such as to withstand nom1 strains of jars, vibrationa, and such other conditions as are incident to shipping, storage, and service, without failure. obtain lightnerand rigidity. tan of the iiPiSii*Metals.- Metals shall
9、be suitably protected to resist corrosion during 3.2.1 3,2.1.1 Leveli Screw When the leveling screw is in its mean position the bot- Ea8e.- The base eh811 be made of cast aluminum-alloy ribbed underneath to 3.2.2 3.2.3 3.2.3.1 Reticle.- It shall be possible to illqinate the feticle by means of an ex
10、- Adjustments.- The reticle and the objective lens of the collimator shall 3.2.4 Iaelo- 3.2.4.1 Straddle Level,- 4 straddle level shall be furnished for leveling %ne collimator. each end which shall rest; on the tube lands. The level.sha.1 and AN-P-32, or AN-P-39, ,respectively. parts shall becoated
11、lack baked enamel. 3.4.3 Exposed Metallic Parts.- Except as otherwise specified, exposed metallic 3.5 Screw Threads.- Unless otherwise specified, screw threads shall be in accord- aric wi6h Specification AN*-126. 3.6 Accessories .- 3.6.1 Carrying Case.- The carrying case shall be suitably constructe
12、d to insure adequate protection to the collimator against jars, shocks, vibrations, and other conditions incident:to handling, shipping, storage, and service use. Special care shall be taken that the collimator tube lands and the V-slots in the base are completely protected in order to prevent misal
13、inement of these parts. The case shall be made of a suitable wood finished on the inside with two cats of varnish and on the outside with one coat of grey enamel, and shall be equipped with metal handle, hinges, and lock, suitably protected against corrosion. All surfaces of contact between the coll
14、imator and the inside of the case shall be fully covered with a suitable wool felt 1/8-inch thick. corner on the outside bottom of the case. . A rubber bumper shall be located at each 3.6.2 Tools.- Tools necessary for the adjusLient of $he collimator shall be sup- plied with eacmirnator and sechely
15、mounted in the carrying case. 3.6.3 Instruction Pamphlet.- A pamphlet, covering the operation and adjustments of the collimator, shall be furnished with each collimator. 3.6.3.1 *Envelope.- The pamphlet shall be contained in an envelope marked with the f oilowing inform IMPORTANT THIS ENVELOPE CONTA
16、 NS INSTRUCT IONS“ 3.7 Identification of Product. - 3.7.1 Nameplate- A nameplate shall be securely attached to the exterior of the carrying case and shall be legibly marked with the following information: COLLIMATW - SEXTANT ANS853- (proper dashlNo.) Manufactureris Part No. Order No. (or Contract No
17、. if Order No. is not assigned) Manufacturer 1s name or trade-mark (omit address) 3.8 Performance.- The collimator shall satisfy the performance requirements speci- fied in Sectign 4 under paragraphs headed as follows: (a) Gentering (b) Parallelism (c) Straddle Level Sensitivity (d) Cross Level Sens
18、itivity Workmanship.- All details of workmanship shall be in accordance with high grade 3.9 optkcal instrument manufacturing practice. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- I MIL-C-b122 bb 9777Ob 0125417 5 4. General.- All the tests requ
19、ired for the testing of collimators are classi- fied as Inspxtests, for which necessary sampling techniques and methods of testing are specified in this section. The contractor shall furnish all samples and shall be re- sponsible for accomplishing the required tests, When inspection is conducted at
20、the con- tractoris plant, all inspection and testing shall be under the supervision of the Goverment inspector, Contractors not having laboratory testing facilities satisfactory to the Govarment shall engage the services of a canmercial testing laboratory acceptable to the inspector. The contractor
21、shall maintain a record, available to the Inspector, showing quantitative results for all tests required by this specification, and signed by an author- ized representative o; the contractor or laboratorg, as applicable. Acceptance or approval of material during course of manufacture shall in no cas
22、e be conetrued as a guaranty of the acceptance of .the finished product. 4.2 individual Tests.- Each collimator submitted for acceptance under contract. shall be subjected to the following tests, to any other test specified herein which the inspector considers neceesaryto determine confomnce with th
23、e requiremenfis of this specification. detemine COnfOrmanCe with by tests, and rotated about its fongitudinal axis, and the image of the collimatbr reticle observed with a suitable optical device. The image of crossline intersection of the reticle. shall not move from its mean position more than a d
24、istance equivalent to the displacement ob- tained by tilting the optical device through 1 minute of arc. randa and a8 o en or a1 of the follow;wthests.- At least 3 fran every 50 collimators and samples selected at ereafter as the Inspector deems advisable shall be subjected to any 4i3.1 The image of
25、 crossline intersection of the reticle shall not move fran ita 4.3.2 Straddle Level Sensitivity.- The straddle level shall be set upon a tilting The tilting base shall be moved The angle shall 4.3.3 4.4 4.5 Cross Level Sensitivity,- The test specified for “Straddle Level Sensititft The an#e shall be
26、 between f; and 10 minutes of arc, Acceptance Stamp,- Each accepted collimator shall be marked with the Inspec- Collimators which have Before resubmitting, full particulars concerning.previous rejection and Colli- Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
27、rom IHS-,-,-MIL-C-6122 (April 1950) 5. PREPARATION FOR DELIVERY 5.1 Application.- The packaging, packing, and marking requirements specified herein apply only to direct purcbses by or direct shipments to the Government. 5.2 Preservation, Packaging, and Packing.-. Preservation, packaging, and packing
28、 shall be in accordance with Specification MIL-P-O, Group VI. 5 *3 Marking and Labelin and the fact that the Government may Have fomulated, furnished or in any way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in any manner liceusing t
29、he holder or any other pekon or corporation, or convey- ing any rights or permission to manufacture, use or sell any patented invention that may in any way be related thereto, Custodian: - Navy - BuAer Other interest: Air Force E22277 5 .-, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
