1、MIL-P-45952 53 W 7997706 0307385 5 W Y MILITARY SPECIFICATION PIN, QUICK-RELEASE, DETENT GENERAL SPECIFICATION FOR !This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope, This specification covers the requirements for detent, 1.2 Clas
2、sification-. Quick-release pins shall be of the style and quick-release pins. -sizes specified on the specification sheet# . W. 2. APPLICABLE I%X!UMENTS 2.1 I The folldng documents, of the issue in effect on dardware (Fasteners and Related Items)?, Packaging and Packing for Shipent and Storage of. M
3、artensitic Corrosion-Resisting Steel. Free Machining ) Resisting. Militaq d Reforging FSC 5340 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-6875 - Heat Treatment of Steels (Aircraft Practice, Process MIL-P-45952/1 - Fin, Quick - Release, Det
4、ent MU-e-81562 - Coating, Cadmium or Zinc (Mechanically Deposited) For ) STANDARDS MIL-STD-105 MiL-STD-Eg MIL-STD-1312 - Fasteners; Ilest Methods. (Copies of specigications , standards, dradngs and publicalxhns required - Sampling Procedures and “ties. . Alloy steel shanks shall be heat treated stre
5、ngth. 3.3.2 Double-shear strength. Pins shall be capable of withstanding, without failure, the double-shear strengths specified in the specification sheet. 3.4 Protective finish. 3.4.1 Cadmium. Alloy and carbon steel parts shall be cadmium plated in accordance with QQ-P-416, Type II, Class 2 or cadm
6、ium coated in accor- dance with MIL-C-81562, “ype II, Class 2. 3.4.2 Passivation. Corrosion-resisting steel parts shall be passivated in accordance with QQ-P-35. 3.5 Design and construction. The design and construction of the pins shall be as specified herein and in accordance with the specification
7、 sheet. 3.5.1 Shank straightness. Pln shank straightness shall be as speci- fied in Table I. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-45752 53 -7779706 0307388 O i SHANK SI!RAIGHTNESS S“K MAXIMM Dl“ION DWTE8 (INCH PER INCH (INCH) GRIP
8、LENGTH) . O030 .-5 112 and up .mo 3.5.2 Surface roughness. Pins shall have a maximum surface roughness (arithmetical average), after application of protective finish, of 125 microinches. Values shall be determined in accordance with ANSI B46.1. 3.5.3 Insertion and removal force. Insertion and remova
9、l forces for these pins shall fall within the limits specified in the specifica- tion sheet-when inserted nd removed 15 times; - 3.5.4 Rinp;. and shall be able to rotate through the hole. or defom when subjected to the maximum removal force specified in the specification sheet. The ring shall be loc
10、ated within a hole through the head The ring shall not break 3.6 Workmansp. Pins shall be fkee from pits, seams, cracks, burrs, scratches and other surface contamination. Superficial scratches to the chromate coating in the staked ball area and the head-shank juncture due to fabrication techniques s
11、hall be allowed. 3.7 Material certificate. The contractor shall furnish the Government with a 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the per- formance of all inspection requirements as specifled herein. Except
12、as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspec- tion requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in
13、 the specification where such inspections are deened necessary to assure supplies and services confonn to prescribed requirements. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-45752 53 7977706 0307387 2 4.2 Inspection lot. A lot shall cons
14、ist of coiaipleted pins which are of the same part number, produced by the same manufacturer under essentially the same conditions, and submitted for acceptance at one time. 4.3 Sampling for lot inspection. 4.3.1 Sampling for examination. A random sample of pins shall be taken from each lot in accor
15、dance with MIL-STD-105, Inspection Level I. The Acceptable Quality Level (Am) shall be as specified in “able II. 4.3.2 removal force. accordance with MIL-STD-105, Inspection Level S-2. percent defective. Sampling for test of double-shear strength and insertion and A randm sample of pins shall be tak
16、en *om each lot in “he AQL shall be 1.5 4.3.3 Sampling for protective finish. Sampling for test of protec- tive finish shall be in accordance with the applicable specification of 3.4. 4.3.4 Sampling for packaging and packing. Sampling for examination and test of packaging, packing and marking shall
17、be in accordance with - - -_ PPP-H-1581 4.4 Examination. Each pin taken as specified in 4.3.1 shall be Examination examined to verify conformance with this specification. shall be conducted in accordance with “able II. defect shall be rejected and if the number of defective pins in any individual ca
18、tegory exceeds the acceptance number for that category, the lot represented by the sample shall be rejected. Any pin containing a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-q5752 53 7779706 0307390 7 m TABLE II Classification of Defects Ca
19、tegories Critical Major 101 102 103 i04 Minor 201 2 203 204 205 Defects Inspection Metho None defined AQJ = 1.0 percent defective Material, not as specified (3.2) Grip length, not as specified (3.5) Shank diameter, not as specified (3.5) Shank straightness, not as specified (3.5.1 ) AQ,L = 4.0 perce
20、nt defective Protective finish, missing or incaplete ( 3.4 ) Other dimensions, not as specified (3.5) Surface roughness, not as specified (3.5.2) Workmanship -( 3.6 ) Marking (3.8) Vi sua1 *SIE SIE SIE Visual SIE SIE Visual Vi sua1 *SIE = Standard Inspection Equipnent 4.5 Tests. 4.5.1 Double-shear.
21、Samples taken as specified in 4.3.2 shall be subjected to a double-shear test to determine conformance with 3.3.2. The test shall be conducted in accordance with Test i3 of MIL-STD-1312. 4.5.2 Insertion and removal force. Samples taken as specified in 4.3.2 shall be subjected to an insertion and rem
22、oval force test to deter- mine conformance with 3.5.3. Pins shall be inserted and removed i5 times using the correct sise holes specified in the specification sheet. Maxi- mum and minimum forces shall be within the limits specified. shall not break or deform (see 3.5.4). The ring 4.5.3 Protective fi
23、nish. Tests of protective finishes shall be 4.5.4 Pockaging and packing. &amination and test of packaging, in accordance with the applicable specification of 3.4. packing and marking shall be in accordance with PPP-H-1581, 5. PREPARATION FOR DELIVERY 5.1 Packaging. Packaging shall be level A or C, a
24、s specified (see 6.2), in accordance with PPP-H-1581. 5.2 Packing. Packing shall be level A, B or C, as specified (see 6.2), in accordance with PPP-H-1581. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-45752 53 = 7779706 0307373 O 5.3 Marki
25、ng. Interior packages and exterior shipping containers shall be marked in accordance with MIL-STD-129. 6. NOTES 6.1 Intended use. Detent quick-release pins are intended for use for fastening where quick assembly and disassembly are required. pins cm be inserted and removed by hand. applications only
26、. These They should be used for shear 6.2 Ordering data. Procurement documents should specify the follaw- ing : (a) (b) (c) Applicable part number. (d) Title, number and date of this specification. Title, number and date of the specification sheet, Selection of applicable levels of packaging and pac
27、Jsing (5.1 and 5.2). Custodians: Navy - OS Air Force - 11 Army - wc Reviewer Activities : Army - AT, AV, GL, MU Navy - None Air Force - 82 DSA - IS Preparing Activity: Army - wc Project No. 5340-0951 User Activities Navy - MC, SH Air Force - None Army - ME 7 U. S. GOVERNMENT PRINTING OFFICE 1973-7 14-543/4300 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
