1、.m MIL-A-21165A 27 August 1965 SUPERSEDING MIL-A-21165(Aer) 20 November 1957 MILITARY SPECIFICATION ADAPTERS, QUICK-DISCONNECT, PASSENGER SEAT TO FLOOR This specification is mandatory for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope - This specification covers
2、 the requirements for passenger seat to floor quick-disconnect adapters for installation in mili- tary aircraft. 1.2 Classification - Adapters shall be of the following sizes as specified (see 6.2) : .855/. 850-inch diameter (MS22034-1) .885/. 882-inch diameter (MS22034-2) .867/. 864-inch diameter (
3、MS22034-3) .752/. 748-inch diameter (MS22034-4) .893/. 890-inch diameter (m22034- 5 ) .917/. 914-inch diameter (22034-6) 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this speci- fication to the exten
4、t specified herein. SPECIFICATIONS Federal “ L-P- 378 PPP-B- 566 PPP- B- 636 PPP- B- 640 PPP- B- 676 Plastic Film, Polyethylene, Thin Gage Boxes, Folding, Paperboard Box, Fiberboard Boxes, Fiberboard, Corrugated, Triple, Wall Boxes, Set-up, Paperboard Provided by IHSNot for ResaleNo reproduction or
5、networking permitted without license from IHS-,-,-MIL-A-21165A Military MIL-P-I. Preservation, Methods of MILA-8625 Anodic Coatings, for Aluminum and Aluminum Alloys STANDARDS Military MILSTD-105 Sampling Procedures and Tables for Inspection by Attributes MIL-STD-129 Marking for Shipment and Storage
6、 MIL-STD-130 Identification Marking of U. S. Military Property Mi321234 Adapter, Tiedown Cargo Ring and Seat Stud, 5,000 Lb, Type I ME321235 Adapter, Tiedown Cargo,Ring and Seat Stud, 10,000 Lb, Type II W22034 Adapter, Quick-Disconnect, Passenger Seat to Floor W33586 Metals - Definition of Dissimila
7、r (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 3. REQUIREMENTS preproduction testi 3.1 Pre roduction - This specif
8、ication makes provisions for 3.2 Materials - Materials shall conform to applicable speci- fications and shall be as specified herein and on applicable drawings. Materials which are not covered by specifications, or which are not speci- fically described herein, shall be of the best quality, of the l
9、ightest practicable weight, and suitable for the purpose intended. 3.2.1 Metal parts - Metal parts shall be of a corrosion-resist- ant material or treated in a manner to render them adequately resistant to corrosion. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
10、nse from IHS-,-,-MIL-A -21165 3.2.1.1 Dissimilar metals - Unless suitably protected against electrolytic corrosion dissimilar metals as defined in m33586 shall not . be used in intimate contact. 3.2.1.2 Aluminum alloy parts - Aluminum alloy parts, when used, shall be covered with a protective film c
11、onforming to 1-8625. 3.2.2 Protective treatment - When materials are used in the construction of the adapters that are subject to deterioration when ex- posed to environmental conditions likely to occur during service usage, they shall be protected against such deterioration in a manner that in no w
12、ay prevents compliance with the performance requirements of this specification. 3 93 Design and construction - The adapters shall conform to MS22034. The adapter shall be designed and constructed to withstand the strains, jars, vibration, and other conditions incident to shipping, storage, installat
13、ion, and service. The adapter shall not be subject to opening by shock or jar. It shall be designed to insure smooth and positive operation at extremely low and high temperatures. 3.4 Performance - The adapters shall conform to the follow- ing requirements when subjected to the applicable tests of S
14、ection 4. 3.4.1 Strength - The adapters shall not slip off the studs and shall not break, slight deformation being acceptable, when sub- jected to the loading specified in 4.5.2.1, 4.5.2.2, and 4.5.2.3 3.4.2 Vibration - The adapters shall not disengage when subjected to the vibration tests specified
15、 in 4.5.3, 3.4.3 Endurance - The adapters shall be capable of sus- taining 1000 cycles without malfunction when subjected to the endurance tests specified in 4.5.4. 3.5 Lubrication - Lubrication shall not be required. 3.6 Finish - The finish shall be as specified on the appli- cable drawings. Protec
16、tive coatings and finishes which might crack, chip, or scale during normal service life or under extremes of atmos- pheric conditions, shall not be used. 3 07 Identification of product - Each adapter shall be permanently marked at the location indicated on Ml322034 for identifica- tion with the part
17、 number and the manpfacturers .name, symbol, or trade- mark in accordance with MIL-STD-130. 3 -8 Workmanship - The adapters shall be free from irregular- ities or defects which could adversely affect performance, reliability, or durability. Provided by IHSNot for ResaleNo reproduction or networking
18、permitted without license from IHS-,-,-MIL-A-21165A 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility 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, Except as otherwis
19、e specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform t
20、o prescribed requirements. 4.2 Classification of inspection - The examination and testing of the adapters shall be classified as follows: Preproduction inspection - Preproduction inspection consists of examinations and tests performed on adapters which are representative of the production item after
21、 award of a contract to determine that the production item meets the requirements of this specification. Quality conformance inspection - Quality conformance inspection consists of examinations and tests per- forked on individual products or lots to determine conformance of the products or lots with
22、 the require- ments set forth in this specification. 4.3 Preproduction inspection - The preproduction inspection of the adapters shall consist of examinations and tests for all the require- - ments of this specification. 4.3.1 Preproduction samples - 4.3.1.1 Applicable to the Bureau of Naval Weapons
23、 - Unless other- wise specified, as soon as practicable after award of the contract or order, the manufacturer shall submit twelve adapters of the MS part number contracted for, three for each of the three strength tests, and three adapters for the vibration and endurance tests, The samples shall be
24、 representative of the construction, workmanship, components, and materials to be used during production. When a manufacturer is in continuous pro- duction of these adapters from contract to contract, submission of further preproduction samples on the new contract may be waived at the discretion of
25、the procuring activity, Approval of the preproduction samples or the waiving of preproduction inspection does not preclude the requirements of submitting to the quality conformance inspection. The preproduction Sam- ples shall be forwarded to the Supply Officer, Naval Air Engineering Center, Philade
26、lphia, Pennsylvania 19112, Attention: Director, Aerospace Crew Equipment Laboratory, The samples shall be plainly identified by securely attached durable tags marked with the fol1owing.information: Sample submitted by (name) (date) for preproduction inspection in accordance with the requirements of
27、MIL-A-21165A under Contract No. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-21165A MS Part Number Manufacturers Part No. 4.3.1.1.1 Upon completion of the preproduction inspection, all the applicable inspection reports and when applicable, r
28、ecommendations and comments pertinent for use in monitoring production shall be forwarded to the Government quality control representative. One approved adapter shall be returned to the manufacturer for use in monitoring production. The other adapters shall be consumed or destroyed in the preproduct
29、ion inspec- tion and shall not be considered as part of the quantity to be delivered under contract. 4.3.1.2 Applicable io the Air Force and Army - For purchases by the Air Force and Army, the quantity and kind of samples, the name and address of the preproduction inspection activity, and other pert
30、inent information (see 4.3.1.1 and 4.3.1.1.1 for information) shall be as speci- fied by the contracting officer (see 6.2). 4.4 inspection shall 4.4.1 4.4.1.1 4.4.1.1.1 Quality conformance inspection - The quality conformance consist of the following: Visual examination of the adapters Strength test
31、s Vibration Ehduranc e Preparation for delivery Samdina - Inspection lot - Adapters - An inspection lot size shall be expressed in units of one adapter made under essentially the same conditions and from the same materials and components. The sample unit shall be one adapter. 4.4.1.1.2 Preparation f
32、or delivery - An inspection lot size shall be expressed in units of one fully prepared shipping container, containing adapters fully prepared for delivery made from essentially the same mate- rials and components. The sample unit shall be one shipping container, containing adapters fully prepared fo
33、r delivery with the exception that it need not be sealed. 4.4.1.2 Sampling for tests and examinations of the adapters - The sample size, acceptance criteria, tests and examinations required for the adapters shall be as specified in Table I. 5 Provided by IHSNot for ResaleNo reproduction or networkin
34、g permitted without license from IHS-,-,-_ MILA-21165A SAMPLE SIZE, ACCEPTANCE CRITERIA, TESTS, AND EXAMINATIONS OF THE ADAPTERS r-T INSPECTION TYPE OF T ION INSPEC- Visual examina- tion (see classification of defects ) Strength tests lf 1) Static hori- zontal loading 2) Static ver- tical loading 3)
35、 Impact loading Vibration and Endurance Criti- c al Minor Criti- cal Criti- cal Minor PARAGRAPH 3.4.1 3.4.2 3.4.3 ” METHOD 4.5.2 4.5.2.1 4.5.2.2 4.5.2.3 4.5- 3 4.5.4 4.5.1.2 ACCEPTANCE CRITERIA * Every level of 4. O defects An acceptable quality any critical defects. adapter Reject all units with pe
36、r hundred units for minor defects . Inspec- Acceptance number Level S-1 number 1. for each strength t ion zero rejection test 2J Inspec- number 1. Level S-1 Acceptance number t ion zero rejection Inspec- Level S-2 4.0 total percent t ion defectives - 2/ - 1/ Samples subjected to these tests shall no
37、t be delivered as part of the contract or order but shall be discarded. 2f The sample size shall be based only on the applicable sample size code letter corresponding to the specified inspection level of MIL-STD-105. 4.5 4.5.1 Inspection methods - Visual examination - Provided by IHSNot for ResaleNo
38、 reproduction or networking permitted without license from IHS-,-,-4.5.1.1 Adapter - Every adapter shall be checked d-imensionally and examined visually to determine conformance to this specification and MS22334. The classification of defects, Table II, shall be used to classify the defects found. C
39、LASSIFICATION OF DEFECTS FOR VISUAL EXAMINATION OF THE ADAETER MIL-A-21165A TADLE II Critical 1. Material - failure to meet speci- fied requirements. 2. Surface - rough, malformed, mis- aligned or improperly machined. 3. Improper assembly - any component missing, malformed, fractured or otherwise da
40、maged. 4. Other discrepancies which might impair the function of the adapter. 5. Any functioning part that works with difficulty. 6. Any component loose or otherwise not securely retained. 7. Faulty workmanship which might impair the serviceability of the adapt er. 8, Dimensions not within specified
41、 tolerances. Minor 231. Marking - missing, insuff i- cient, incorrect, illegible, or not permanent. 4.5.1.2 Preparation for delivery - Each of the fully prepared shipping containers, containing adapters, selected as a sample unit from the lot shall be visually examined to determine that the packagin
42、g, packing, and marking conform to this specification. The classification of defects, Table III, shall be used to classify the defects found. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-21165A TABU III CLASSIFICATION OF DEFECTS FOR PREPAR
43、ATION FOR DELIVERY It em Defects Exterior and interior markings Packaging and packing materials Workmanship Exterior and interior weight or content Missing, incorrect, incomplete, illegible, of improper size, location, sequence or method of application; marking not the same on interior and exterior
44、containers. Any non-conforming component; any component miss- ing, damaged or otherwise defective. Inadequate application of components such as in- complete closure of the unit package, intermediate package, container flaps, or loose strappings, etc., bulging or distortion of the container. Number p
45、er container is more or less than re- quired; gross or net weight exceeds the require- I ment. 4.5.2 Strength tests - Each sample adapter shall be subjected to the following strength tests and shall meet the requirements of 3.4.1. 4.5.2.1 Static horizontal loading - Apply a load of 2300 pounds to a
46、collared adapter parallel to the base of the adapter, as shown in Figure 1. 4.5.2.2 Static vertical loading - Apply a load of 5475 pounds to a collared adapter through the longitudinal axis of the adapter, as shown in Figure 1. 4.5.2.3 Iapact loading - A force of 5950 pounds resulting from impact lo
47、ading shall be applied to the adapter at an angle of 22-1/2 degrees as shown in Figure 1. The impact loading shall be applied as a half-sine wave with a base of 0.050 seconds and a peak of 5950 pounds. 4.5.3 Vibration - Each sample adapter shall be fastened and vertically tensioned to 200 pounds and
48、 vibrated in this condition on a vibration table at a double amplitude of 1/16 inch at 60 cycles per second for a period of 6 hours. The adapter shall meet the requirements of 3.4.2. The endurance test shall be conducted after the completion of this test. 4.5.4 Endurance - The sample adapter which h
49、as been subjected to the vibration test, shall- be subjected to 1000 cycles of engaging and disengaging. The adapter shall meet the requirements of 3.4.3. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-211b5A Lb 777770b 0171735 5 MIL-A-2116jA HOLDING DOGS STATIC VERTICAL LOAD IMPACT LOAD 5475 LB 5950 LB 22-1/2O STATIC HORIZONTAL LOAD 2300 LB rl I
