1、MIL-S-85376AAS) 1 February 1985 SUPERSEDING 9 April 1980 MIL-S-85376(AS) MILITARY SPEC1 FICATION STAND, SHIPBOARD, HELICOPTER MAINTENANCE This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the D
2、epartment of Defense. 1. SCOPE 1.1 Scope. This specification covers a helicopter maintenance stand used by personnel aboard aviation capable ships. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified, the following specifications and stand
3、ards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FED ERAL QQ-A-200/9 Aluminum Al loy Bar, Rod, Shapes, Tube and Wire, QO-A-
4、250/11 Aluminum Alloy 6061, Plate and Sheet WW-T-700/6 Tube, Aluminum Al Toy, Drawn, Seam1 ess, 6061 MMM-A- 1 34 Adhesive, Epoxy Resin, Metal to Metal Structural, PPP-B-601 Boxes, Wood, Cleated-Plywood PPP-B-62 1 Box, Wood, Nailed and Lock-corner Extruded, 6063 Bondi ng Beneficial comments (recommen
5、dations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Systems Engineering and Standar-dization Department (Code 931, Naval Air Engineering Center, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvem
6、ent Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 4920 THIS DOCUMENT CONTAINS /IF- PAGES ? Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS (contd) MI LI TARY MIL-C-5541 f4IL-R-5674 MIL-W-22248 MIL-C-22
7、751 MIL-P-23377 MIL-N-25027 Chemical Conversion Coatings on Aluminum and Aluminum Alloys Rivet, Structural, Aluminum Alloy, Titanium Columbium Alloy, General Specification for Neldment, Aluminum and Aluminum Alloy Coating System, Epoxy-Polyamide, Chemical and Solvent Resistant, Process for Appiicati
8、on of Primer Coati ngs : Resistant Nut, Self-locking, 250F, 450“F, and 800F Epoxy-Pol yami de, Chemi cal and Sol vent STANDARDS FED ERAL FED-STD-595 Colors MI LI TARY MXL-STD-129 MI L-STD- 1 30 MS17829 MS17985 MS21044 MS24380 AN3 AN6 Marking for Shipment and Storage Identification Marking of US Mi 1
9、 i tary Property Nut, Self-Locking, Hexagon, Regular Height 25OoF, (Nonmetal ic Insert), Non-Corrosion-Resistant Steel Pin, Quick-release, Self-retaining, Positive Locking, Single Acting (T) Handle Nut, Self-locking, Hexagon Regular Height, 250“F, 125 ksi Ftu and 60 ksi Ftu (Asg) Caster, Industrial
10、Bolt and Machine, Aircraft Bolt and Machine, Aircraft (Copies of specifications, standards, handbooks, drawings, and publ ications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting off i Cer.
11、 1 2.1.2 Other Government documents, drawings, and publ ications. The following other Government documents, drawings, and publ ications form a part of this specification to the extent specified herein. NAVA1 RENGCEN MPR 1212 Formulation and Processing of Polyurethane Type Compound for Moulding of Pa
12、rts With or Without Metal Inserts for Impact Resistance. . (Application for copies should be addressed to the Naval Air Engineering Center, Ship Xnstiil lations Engineering Department, Code 912, Lakehurst, New Jersey 08733). Provided by IHSNot for ResaleNo reproduction or networking permitted withou
13、t license from IHS-,-,-_NIL-S-5376A Li9 7999906 0257863 MI L-S-85376A(AS) 2.1.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 First article inspection.
14、When specified, a sample shall be subjected to first article inspections (see 4.2 and 6.3). 3.2 Materials. The front frame, rear folding frame, braces, and the spreader latch assembly shall be constructed of extruded aluminum alloy conforming to QQ-A-20019. tubing conforming to WW-T-700/6 Type I. Th
15、e rails shall be constructed of drawn aluminum 3.2.1 Treads. Each tread shall be constructed of open-grip aluminum alloy 6061 conforming to QQ-A-250/_11 or aluminum alloy 6063. (Morton Mfg. Co., 5th and Church Streets, P.O. Box 640, Libertyville, IL 60048) or equivalent (see 3.4.2). 3.2.2 Platform.
16、The platform shall be constructed of tread-grip aluminum alloy 6061 conforming to QQ-A-250/11 or aluminum alloy 6063. 3.3 Design and construction. The work platform shall be 80 5 2 inches hiah. The stand shall have hand rails on the front frame parallel to the chnnels, removable guard rails on the w
17、ork platform and a.fo1ding rear frame (see Figure 1). The stand shall be equipped with a chain. The chain shall latch and unlatch the front and rear frames when in the collapsed position. The chain shall be removable without the use of tools. The stand shall be capable of supporting not less than 10
18、00 pounds. The stand shall weigh not more than 85 pounds. Lighten holes are acceptable where they do not effect the structural strength of the stand. All weldments shall conform to MIL-W-22248 class 3. 3.4 Dimensions. 3.4.1 Front Frame. The front frame shall be fabricated from aluminum alloy channel
19、s (5 x 2 x 0.1875 inch). 60(+0, -5) degrees from the horizontal when in the open position. It shall be 18 + 3 inches wide at the top and 24 5 3 inches at the bottom. There shall be two-5 x 2 x 0.1875 inch side rail channels. outside of the stand. The frame shall be welded to the work platform. The f
20、rame shall be at an angle of The channels shall open to the 3.4.1.1 Tread Spacing. There shall be nine (9) treads equally spaced on Treads shall be fastened to the front frame with bolts the front frame. The treads shall be 4.875 2 0.0625 inches deep and 0.125 inch thick with 2 inch flanges. Treads
21、shall be fabricated from open-grip tread or equivalent. conforming to AN3 and nuts conforming to MS21044 (see 4.4.2). 3.4.1.2 - Braces. Two 45“ cross braces shall be fabricated from 1 x lx 0.1875 inch aluminum alloy angle. Each brace shall be secured to the underside of the lowest tread by aluminum
22、alloy rivets conforming to MIL-R-5674 or bolts conforming to AN3 and nuts conformfng to MS21044 or by welding (See Figure 1). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-S-S37bA 49 W 999970b 0257b4 T I MI L-S-85376A(AS 3.4.1.3 Cms The stan
23、d shall be equipped with two (2) rigid casters eeinfsrming to 16 24380-6RC. inch aluninum alloy rectangular bars conforming to QQ-A-20019. be welded to the back of the front channels (see Figure 1). bo secured to the bars by four (4) bolts conforming to AN6C5 and four (4) self-locki tig nuts conform
24、ing to MS17829-6F. Each caster shall be fastened to two (2) 0.5 x1.0 The bars shall The casters shall 3.4.2 ,kirk PlajfQrm. The work area of the platfcrrm shall be 18 by 18 inches squ-and.125 inches thick. The platform shall be constructed of tread-grip or equivalent. specified in 4.4.1 and 4.4.2. T
25、he platform shall be inspected and tested as 3.4.3 Rega: Folding Jrsmg. The rear folding frame shall be fabricated from aluminum alloy chanriel E1 x 0.125 inch) (see 4.4.1.1). The channels shall face the insrde of the stand. The frame shall be provided with type CE, I phenol i c ueai bush f tigs . i
26、 3.4.3.1 gloss yellow (number 13538). 3.8 Identification. I - 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-S-8537bA Y7 W 399790b 02578bb 3 W MI L-S-85 37 6A (AS 1 3.81 Nameplat& A namplate permanently and legibly marked for identification i
27、n accordance with MIL-STD-130, shall be securely attached to a side rai 1 channel, The nameplate shall contain the following information: STAND, HELICOPTER MAINTENANCE CAPACITY - 300 POUNDS SPECIFICATION - MIL-S-85376(AS STOCK NO. -(AS APPLICABLE) PART NO. - M85376A CONTRACT OR ORDER NO. - MANUFACTU
28、RERS NAME OR TRADEMARK U. S. PROPERTY 3.9 Corkmansh9. Workmanship shall be of a quality to ensure delivery of a stand that is free from defects resulting from defective material, improper manufacturing or assembly practices. 4, QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection. Unless o
29、therwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other faci 1 i ties sui tab1 e for the performance of the inspection requirem
30、ents specified herein, unless di capproved by 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 ensure supplies and services conform to prescribed requirements. 4.2 First Article Inspectio
31、n. First Article Inspection shall consist of al 1 the tests specified herein. 4.2.1 First article sample. Unless otherwise specified, as soon as practicable after the award of the contract or order, the manufacturer shall submit one unit for inspection to determine conformance with this specificatio
32、n (see 6.3.1.11. The unit shall be representative of the construction, workmanship, components, and materials to be used during production. When a manufacturer is in continuous production of these units from contract to contract, submission of a first article sample on the new contract may be waived
33、 at the discretion of the Government. Approval of the first article sample or the waiving of the first article inspection is not a waiver of the requirement of submitting to the qual i ty conformance inspection. 4.3 Quai ity Conformance Inspections. Qual i ty Conformance Inspections shall be as spec
34、ified in Table I. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-S-537bA 47 7799706 0257867 5 m Requirement In spect ion Paragraph Vi sua1 Exami nation Dimensions 3.4 Spreader Latch Assembly 3.4.4 Guard Rails 3.4.7.2 Storage 3.6 Strength Ti edo
35、wn Ri ngs 3.4.5 Safety Stand Shoes 3.4.6 Test Method Paragraph 4.4.1 4.4.1.1 4.4.1.2 4.4.1.3 4.4.1.4 4.4.2 4.4.2 4.4.2.1 4.4.1 Visual Examinations. The stand shalT be examined visually for conformance to Figure 1 and Section 3. 4.4.1.1 Dimensions. The front frame, work platform, rear folding frame,
36、and rails shall be inspected for conformance to 3.4.1, 3.4.2, 3.4.3, and 3.4.7 respectively. 4.4.1.2 Spreader Latch Assembly. The Spreader Latch Assembly shall be visually examined such that the quick release pin shall be installed and removed-wi thout use of tool s. i nspec ted for conformance to 3
37、.4.7.2. 4.4.1.3 Guard Rai 1 s. The removabi 1 i ty of the guard rai 1 s chal 1 be 4.4.1.4 Storage. The stand in the storage configuration (folded) shall be inspected for conformance to 3.6. 4.4.2 Strength Test. The 1000 pound load shalT be applied to each tread for 5 minutes and the work platform fo
38、r 30 minutes with the stand in service position. platform. test platform with a 1000 pound load applied to the stand. The chains shall be taut on each side so that there is no movement of the stand. platform shall be tilted 30 degrees from the vertical to the left for five minutes. This test shall b
39、e repeated tilting the stand 30 degrees from the vertical to the right. The stand shall remain anchored at all times. There shall be no rupture, deformation or pull out of the tiedown rings. shall not collapse, rupture or deform. There shall be no fracture or deformation of treads or work A chain sh
40、all be connected from each tiedown ring to a pad eye on a The test The stand 4.4.2.1 Safety Stand Shoes. The epoxy used shall be tested in accordance with MMM-A-134 test #1. 4.5 Packaging. Packaging shall be examined for conformance to section 5. 7 Provided by IHSNot for ResaleNo reproduction or net
41、working permitted without license from IHS-,-,-MIL-S-8537bA 47 m 777770b 0257868 7 MI L-S-8 5 3 76A ( AS 1 5. Packaging. 5.1 packin_g. Packing shall be Level A as specified (see 6.2). 5.1.1 Level A. The stand shall be packed in wood boxes conforming to PPP-8-601, overseas Type, Grade B or PPP-B-621,
42、 Class 2. 5.2 Marking. Marking for shipment shall be in accordance with MIL-STD-129. 6. NOTES 6.1 Intended use. The servicing stand is intended for maintenance of SH-2 6.2 Ordering data. Acquisition documents should specify the fol lowing: and SH-60 aircraft aboard aviation capable ships. (a) Title,
43、 number and date of this specification. (b) Level of packing (see 5.1). 6.3 Information for the contracting officer. Contracts or orders should specify the fol lowing: (a) Title, number, and date of this specification. (b) Packing: - Level A (c) Special marking, if required (see 5.2). (d) First arti
44、cle inpsection, if other than specified (see 6.3.1.11. (e) Where first article inspection shall be confucted (see 6.3.1 .l .a). (f) Where first article inspection report shall be sent. 6.3.1.1 Whether first article inspectionis required. When a contractor is in continuous production of the maintenan
45、ce stand ?rom contract to contract, consideration should be given to waive the first article inspections. If first article inspection is required, indicate: a. Where the first article inspection is to be conducted (at the contractors plant or Government or commerical laboratory). b. That the approva
46、l of first article samples or the waiving of the first article inspection shall not relieve the contractor of his obligation to fulfill all other requirements of the specification and contract. Preparing activity: Navy - AS Project No. 4920-N391 Provided by IHSNot for ResaleNo reproduction or networ
47、king permitted without license from IHS-,-,-MIL-S-8537bA 47 7777706 0257867 7 NOTES : .1 .DIMENSIONS ARE IN INCHES. E.ALL WELDING PROCESS SHALL BE IN ACCORDANCE WITH BEST COMMERCIAL PRACTICE. SYMM. GUARD RAIL ( REMOVABLE AND SECTIONAL FOR STORAGE) 8.00 R REAR VIEW Figure 1. Maintenance Stand _.,-I-.
48、- ,I_.I -_ FRONT VI E14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-8537bA 47 W 7973706 OZ57870 5 W MI L-S-85376A( AS) t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-8537bA Li7 m 777770b 0257873 7 m MI L- S -8 537 6A( AS ) n W d. o I c o H 11 U.B. BOVERNHENT PRINTINE OFFICE: 198s - 505-038/2094? U E: rd I U c rd Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
