1、K-wa5 MIL-F-8837A 47 9777706 0273360 8 2 IINC“DI MI L-F-8839A 23 December 1988 SUPERSEDING MIL-F-8839(ASG) 23 July 1958 MI LI TARY SPEC I F I CAT I ON FITTINGS, LUBRICATION, DRIVE TYPE This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 S
2、cope. This specification covers drive-type lubrication fittings for maintenance,use only and is not intended for new design. 1.2 Classification. Lubrication fittings covered by this specification 1.2.1 Type. shall be of the following classes and types. Type I - Plain end. Type II - Serrated end. Typ
3、e III - Flush end. 1.2.2 Classes. Class 1 - Drive type fitting with no check valve. Class 2 - Drive type fitting with check valve. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards and publications. Unless otherwise specified, the following specifications, standards a
4、nd publications of the -. issue listed in that issue of the Department of Defense, ,Index of Specifica- tions and Standards (DODISS) specified in the solicitationform a part of this specification to the extent specified herein. Beneficial comments (recommendations, additions, deletions) and any pert
5、inent data which may be of use in improving this document should be addressed to: Systems Engineering and Standardization Department (Code 53), Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing a
6、t the end of this document or by letter. , THIS DOCUMENT CONTAINS /b PAGES. AMSC N/A - FSC 4730 DISTRIBUTION STATEMENT . Approved for pub1 - ic release; distribution is un1 imited. -/ - Licensed by Information Handling Servicesc &= MIL-F-B39A 47 M 9999906 027L36L T i MIL-F-8839A SPECIFICATIONS FEDER
7、AL QQ-fi-28 1 QQ-W-390 QQ-P-4 16 PPP-B-566 PPP-B-576 PPP-B-585 PPP-B-591 PPP-50 1 PPP-B-62 1 PPP - B- 636 PPP-B-665 PPP-B-676 PPP-T-60 MILITARY MIL-P-116 MI L-F-354 1 Pl1 L-L- 10547 STANDARDS NILITARY DOD-STD-100 MIL-STD-105 Nickel-Copper-Alloy Bar, Rod, Plate, Sheet, Strip, Wire, Forgings and Struc
8、tural and Special Shaped Sections Wire, Nickel-Chromium Iron Alloy Plating, Cadniiuni (Electrodeposited) Boxes, Folding, Paperboard Boxes, Wood, Cleated, Veneer, Paper Overlaid Boxes, Wood, Wirebound Boxes, Shipping, Fiberboard, Wood-Cleated Boxes, Wood, Cleated-Plywood Boxes, Wood, Nailed and Lock-
9、Corner Boxes, Shipping, Fiberboard Boxes, Paperboard, Fleta1 Stayed (Iricludiriy Stay Mat er i a 1 ) Boxes , Set-up , Paperboard Tape, Packaging , Waterproof Preservation, Methods of Fittings, Lubrication Liners, Case, and Sheet, Overwrap, Water-Vaporproof or Waterproof , Flexible Engineering Drawin
10、g Practices Sampling Procedures and Tables for Inspection by Attributes blIL-STD-129 Marking for Shipment and Storage 2 Licensed by Information Handling ServicesMIL-F-3qA 47 I 9977706 0273362 3 W MI L-F-8839A STANDARDS (Continued) FI I L I TARY ( C o n t i nu ed ) MI L-STD- 130 MIL-STD-2073- 1 Ident
11、ification Marking of U.S. Military Property DOD Material Procedures for Development and Applica- tion of Packaging Requirements MS 15000 Fittings, Lubrication-Hydraulic, Acceptable Tip Designs (Unless otherwise indicated, copies of federal and military specif ications, standards and handbooks are av
12、ailable from the Naval Publications and Forms Center (Attn: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099. ) 2.2 Nongovernment publications. The following documents form a part of this specification to the extent specified herein. documents which are indicated as DOD adopted shall be the is
13、sue listed in the current DODISS and supplement thereto, if applicable. The issues of the AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A108 Steel Bars Carbon Cold-Finished, Standard Quality Specification for B633 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel D39
14、5 1 Packaging , Comercia 1 E 18 Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials, Test Methods for (Application for copies of ASTM publications should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 2.3 Order of prec
15、edence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specifi- cation takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exeniption has been obtained. 3. REQUIREMENTS
16、3.1 Classification of requirements. The requirements for the product are classified as follows: 3 Licensed by Information Handling ServicesMIL-F-B39A 47 = 9797906 0273363 3 MIL-F-8839A Requirements Paragraph Mater ia1 s 3.2 Design and construct ion 3.3 Protective coating 3.5 Performance 3.6 Part num
17、bering of interchangeable parts 3.7 Dimensions and tolerances 3.8 Identification of product 3.9 Workmans h i p 3.10 3.2 Materials. 3.2.1 Balls and tips. Steel per ASTM A108 or Monel per QQ-N-281. 3.2.2 Springs. Nickel-chromium-iron alloy per QQ-W-390 Condition C. 3.2.3 Finish. Steel-cadmium plated i
18、n accordance with QQ-P-416 Type II, Class 2. Mo-None. 3.3 Desian and construction. 3.3.1 Drive type fittings. Drive type lubrication fittings shall conform to the shapes and dimensions shown on the applicable specification sheets. 3.3.1.1 Drive shanks. The drive shanks on the lubrication fittings sh
19、all be suitable for installing the fitting by driving it into a drilled hole. 3.3.2 - Body. All lubrication fittings shall be fabricated from steel per ASTM A108. 3.3.3 Check valves. Unless otherwise specified, lubrication fittings shall he provided with a check valve which will readily admit lubric
20、ant but will prevent its escape through the inlet tip. constructed that leakage will not occur when tested in accordance with 3.5.1. The valve shall be so 3.3.4 Inlet ti . The inlet tip of the lubrication fittings shall carbon steel tip that contacts with the nozzle or coupling of the gun shall be c
21、ase-hardened to a depth of 0.005 to 0.009 inch with a minimum reading of 83 on the Rockwell 15-N scale. The tip of R-nionel fitting shall be heat treated to a minimum hardness of 270 Brinell or hardness no. 27 on Rockwell scale. The tip shall be integral with the body of the lubrication fitting or s
22、ecurely attached by means of screw threads. shall be cadmium plated in accordance with specification QQ-P-416, Type II, Class 3, or zinc plated in accordance with specification ASTM B633. with gun couplers and shall admit lubricant at 1000 psi without leakage between the gun couplers and the fitting
23、s, when the gun nozzle is connected to conform to t + e atest revision of MS15000 design standard. The surface of the “C“ 3.4 Protective coating. The external surfaces of the steel fittings 3.5 Performance. The lubrication fittings shall be suitably connected 4 Licensed by Information Handling Servi
24、ces.- c flIL-F-B39A 43 9999906 0271364 5 the fitting at a minimum angle of 10 degrees in any radial direction between the axis of the gun, nozzle or the coupler, and the axis of the inlet tip of the fitting as shown in the design standard. valve shall retain soap-type grease lubricant at a pressure
25、of 1800 psi with- out leakage using a test gage block (see Figure 1). 3.5.1 Lubricant leakage. All lubrication fittings equipped with a check 3.6 Part numbering of interchangeable parts. All parts having the same manufacturers part number shall be functionally and dimensionally inter- changeable. DO
26、D-STD-1000 shall govern the manufacturers part numbers and changes thereto. 3.7 Dimensions and tolerances. All pertinent dimensions and tolerances, where interchangeability, operation or performance of the fitting may be affected, shall be as specified on the manufacturers drawings. The item identif
27、ication and part nmber requirements.- of 3.8 Identification of product. Each lubrication fitting shall be marked for identification in accordance with standard MIL-STD-130 and the manu- facturers name or trademark shall be permanently marked on all lubrication fittings. . 3.9 Workmanshi . Remove all
28、 burrs and break all sharp edges. The out- side tip surfaces + s all be free of detrimental longitudinal arid spiral tool marks. and defects which could adversely affect safety, performance, reliability or durability. specified herein and in accordance with the applicable specification sheet. In the
29、 event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. All fitting outside surfaces shall be smooth, free from irregularities 3.10 Specification sheets. The individual item requirements shall be as . 4. QUALITY ASSURANCE PROVISIONS
30、 4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements. Unless otherwise specified in the contract, the contractor may use his own or any other facilities suitable for the Performance of the ins
31、pection requirements specified herein, unless disapproved by the Govern- ment. forth in the specification where such inspections are deemed necessary to assure supplies and services conform to.prescribed requirements. The Government reserves the right to perform any of the inspections set 4.1.1 Resp
32、onsibility for compliance. All lubrication fittings must meet all the requirements of Sections 3 and 5 as applicable. forth shall become a part of the contractors overall inspection system or quality program. cation shall not relieve the contractor of the responsibility of assuring that all products
33、 or supplies submitted to.the Government for acceptance comply with all requirements of the contract. not authorize submission of known defective material, either indicated or actual, and does not commit the Government to accept defective material. The inspection set The absence of any inspection re
34、quirements in this specifi- Sampling in quality conformance does e, 5 Licensed by Information Handling Services- - MIL-F-37A q7 7799706 0273365 7 MI L-F-8839A /- PRESSURE OAE f- FLUID SUPPLY RESERWR HIGH PRESSURE HOSE 5 PRESSURE GAGE HYDRAWIC COUPLING - - / / 2 TEST GAGE BLOCK , FIGURE 1. Leakage te
35、st setup. 6 Licensed by Information Handling ServicesMIL-F-39A 47 m 7777906 02713bb 7 MIL-F-8839A 4.2 Classification of inspection. All of the inspections of fittings 4.2.1 Quality conformance inspection. Quality conformance inspection 0 shall be classified as quality conformance inspection. shall c
36、onsist of sampling inspection only. 4.2.2 Sampling inspection. Inspection lot. A random sample shall be selected from each A lot shall consist of lubrication fittings of inspection lot and subjected to the following inspections. the same size, part number, made from the same batch of material of the
37、 same contract or order, submitted for inspection at the same time. 4.2.2.1 4.2.2.2 Record maintenance. The supplier shall rnaintain a record of material certification, chemical analysis and inspection records and the inspection records shall be available upon request by the contracting agency. 4.2.
38、2.3 Material certification. Records of chemical analysis and mechanical property tests showing conformance to the applicable material spec- ifications shall be retained by the material supplier and shall be available upon request by the contracting agency. 4.2.2.4 Resubmitted inspection lots. A resu
39、bmitted inspection lot shall be inspected by the contractor under supervision of the Government Inspector using tightened inspection. If the original acceptance number were zero, a sample size represented by the next higher sample size code letter shall be chosen with the acceptance number remaining
40、 zero. resubmitted, full particulars concerning the cause of previous rejection, and the action taken to correct the defects found in the inspection lot, shall be furnished by the contractor to the Government Inspector. Before an inspection lot is 4.3 Inspection methods. 4.3.1 Examination of product
41、. The fitting shall be thoroughly examined to determine conformance with this specification and applicable drawings with respect to all requirements not covered by tests specified herein. packaging, packing and marking of the fittings shall be examined to conform with the applicable requirements of
42、Section 5 identified to referenced specifications and standards shall be inspected in accordance with the applicable requirements of these documents. 4.3.2 Examination of preparing for delivery. The preservation 4.3.3 Operation. 4.3.3.1 Opening pressure. The fitting shall be tested utilizing a suita
43、ble test setup. A maximum pressure of 450 psi shall be applied to the inlet tip until the check valve opens and lubricant flows through the tip. This pressure test is applied only to the Class 1 lubrication fitting. . 4.3.3.2 Extreme angular position. The lubrication fitting shall be assembled into
44、a hand gun and coupling. and coupling shall be displaced 15“, t or -0 degrees from the longitudinal The longitudinal axis of the hand gun d) 7 Licensed by Information Handling ServicesflIL-F-8833A- 47 m 773306 0271367 .O m- MI L-F-8839A axis of the Pftting. repeated with the hand gun and coupling re
45、aligned to the opposite angular position of 15“, t1 or -0 degrees displacement. The fitting shall admit lubricant. This test shall be 4.3.4 Installation test. 4.3.4.1 Firmness. The lubrication fitting equipped with check valve after installation shall be tested for firmness with maximum pressure of
46、2000 psi applied to the fitting. any movement. The fitting shall remain seated firmly without 4.3.4.2 Lubricant leakage. The fitting shall be tested in a suitable test equipment. pressure of 1800 psi. No lubricant leakage shall be found when the coupling disconnected Prom the fitting tip (see 3.5.1)
47、. Lubricant shall be applied into the fitting with maxirnurn 4.3.5 Hardness test. The lubrication fitting shall be tested for hard- ness in accordance with ASTM E18. The hardness shall conforrn to the values specified in 3.3.4. 4.3.6 Inspection of packaging. The sampling and inspection of the preser
48、vation, packing and container marking shall be in accordance with the requirements of Section 5. 5. PREPARATION FOR DELIVERY 5.1 Prese-9. Preservation and packaging shall be the 5.1.1 bevel A, following level A or commercial as specified in the contract (see 6.2). of 900 each,-of the same part nunib
49、er, shall be preserved in accordance with !lethod III of specification MIL-P-116. containers conforming. to PPP-B-566 or PPP-3-676 e Unless otherwise specified, fittings in a unit quantity Fittings shall be packaged in unit 5.1.2 Commercial. The fittings shall be packaged in accordance with ASTM D-395 9 5.2 Intermediate packaging. When the quantity perriiits, five unit packages or a multiple thereof shall be further packaged in intermediate containers conforming to specifjcation PPP-B-566, PPP-3-676, or PPP-B-665. The gross weight OP the intermediate containers s
