1、 - - - -_ MIL-P-82650 73 7779906 0123007 7 -. - MIL-P-82650 (OS) 20 October 1976 Superseding WS 14776 (See Section 6) MILITARY SPECIFICATION PLASTIC MOLDING MATERIAL, GLASS PHENOLIC This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available fo
2、r use by all Departments and Agencies of the Department of Defense. 1. SCOPE & 1.1 Scope. This specification covers one type of glass phenolic a plastic molding material. 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or
3、 request for proposals, form a part of the specification to the extent specified herein, SPECIFICATIONS Federal RR-S - 3 6 6 Sieve, Test Military MIL-P-116 Preservation-Packaging, Methods of STAWARDS Mi li tary MIL-STD-105 MIL-STD-129 Sampling Procedures and Tables for Inspection by Attributes Marki
4、ng for Shipment and Storage (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) Beneficial comments (recommendations, additi
5、ons, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Ordnance Station, Standardization Division (611), Indian Head, MD 20640, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) ap
6、pearing at the end of this document or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect o
7、n the date of the invitation for bids or the request for proposal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 638-72 ASTM D 695-69. ASTM D 792-66 Tensile Properties of Plastics Compressive Properties of Rigid Plastics Specific Gravity and Density of Plastics by Displacement
8、 (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103) NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT National Motor Freight Classification (Application for copies should be addressed to American Trucking Ass
9、ociations, Attn: Tariff Order Section, 1616 P Street, Washington, DC 20036.) UNIFORM CLASSIFICATION COMMITTEE, AGENT Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) (Technica
10、l society and technical association specifications and standards are generally available for reference from libraries. are also distributed among technical groups and using Federal agencies.) They 3. REQUIRFJGNTS 3.1 Preproduction sample. Unless otherwise specified in the contract or order (see 6.2)
11、 a preproduction sample of the molding material is required and shall be manufactured using the methods and procedures proposed for production (see 4.4.1). The sample shall be tested as specified in 4.5 for the purpose of determining, prior to starting production, that the contractors production me
12、thods are capable of producing molding material that compIies with the technical requirements of the contract. No raw material process changes shall be made, subsequent to approval of the preproduction sample, without prior written approval of the procuring activity. 3.2 Material. The product shall
13、be a glass phenolic plastic molding material, manufactured from Type E glass roving impregnated with a one-stage phenol formaldehyde resin. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-2650 73 W 7977906 0323007 2 MIL-P-82650(OS) 3.3 - Form.
14、The product shall be furnished in a chopped form. One hundred percent of the material shall pass through a 1.0 inch (25.4 nnn) sieve conforming to R-S-366. 3.4 Storage life. The molding material shall be capable of meeting all requirements of this specification for a period of 6 months from the date
15、 of manufacture when stored at a maximum . temperature of 4.5OC (40F). 3.5 Chemical and physical properties. 3.5.1 Uncured molding material. The properties of the uncured molding material shall be in accordance with TABLE I. 3.5.2 Cured molding material. The properties of the cured molding material
16、see 4.5.1) shall be in accordance with TABLE II. TABLE I. Uncured molding material properties. r Property Values minimum maximum Resin content, percent 35 41 Volatile content, percent 3 5 TABLE II. Cured molding material properties. Property Values minimum I maximum I Specific gravity Tensile stren
17、gth, psi Compressive strength, psi 1.75 4 , O00 - 10 , O00 - 3.6 WorkmanshiE. Themolding material shall be uniform in quality and shall be free from impurities and other defects that could adversely affect its use. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
18、e from IHS-,-,-NIL-P-2bSO 93 W 9990b 0123010 9 9 - - _ - - MIL-P-8265O(OS) 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 here
19、in. Except as otherwise 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
20、and services conform to prescribed requirements. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. Preproduction inspection (4.5) b. Quality conformance inspection (see 4.6) 4.3 Inspection conditions. Unless otherwise specified (see 6.2), al
21、l inspections shall be performed under the following conditions: a. Temperature: Room ambient 18 to 35OC (65 to 95F) b, Altitude: Normal ground c. Vibration: None d. Humidity: Room ambient to 95 percent relative, maximum 4.4 Sampling. 4.4.1 Preproduction sample. Unless otherwise specified in the con
22、tract or order (see 6.2), a preproduction sample of 50 kilograms (kg) minimum of molding material shall be manufactured in accordance with 3.1, packaged in accordance with Section 5 (2 unit packages, mnimum), and forwarded to an activity designated by the procuring activity (see 6.2) for preproducti
23、on inspection as detailed in 4.5. Further production of the molding material by the contractor, prior to approval of the preproduction sample, shall be at the contractors risk. 4.4.2 E. Unless otherwise specified (see 6.2), a lot shall consist of all molding material manufactured by the same process
24、 from the same raw materials, by one manufacturer, at one plat, in a single production run, under essentially identical conditions, and offered for acceptance at one time. contain more than one batch of any raw material. No lot of molding material shall 4.4.3 Quality conformance inspection sampling
25、 Quality conformance inspection samples shall be selected in accordance with inspection level S-4 of MIL-STD-105 from molding material prepared for delivery in accord- ance with 5.1. Each sample shall consist of a minimum of 25 grams(g) of molding material obtained from filled sample containers, pr
26、ior to sealing. The sample unit shall be one unit package or container. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-2650 73 7777706 0123012
27、2 W - MIL-P-82650 (OS) d. Calculate the volatile content as follows: x 100 w1 - w2 W1 Volatile content bercent) where: W1 = weight of specimen before test (g) W2 = weight of specimen after test (g) Repeat the procedure for a total of three Sg specimens e. from each sample. f. Report each individual
28、value and the average of the 3 tests. 4.6.2 Resin content. The resin content of the uncured molding material shall be determined as follows: a. Place the crucible with the ash remaining from 4.6.l.c. b. c. Remove the crucible from the furnace, cool in a desiccator and reweigh. d. Calculate the resin
29、 content as follows: directly into a muffle furnace. Ignite at 649 k 14C (1200 k 25F) for 3 hours w -w x 100 2 Resin content (percent) = w1 where W1 = weight of specimen before volatiles test (g) W2 = weight of specimen after volatiles tests (g) Wg = weight of ash after resin test (g) e. f. Report e
30、ach individual value and the average of the 3 tests. Repeat the procedure for each of the three specimens of 4.6.1. 5. PACKAGING 5.1 Preservation, packaging and packing. Unless otherwise specified in the contract or order (see 6.2), minimum requirements for preservation, packaging and packing shall
31、be in accordance with MIL-P-116, method III. in the contract or order (see 6.2). the Uniform Freight Classification Rules, National Motor Freight Classification Rules, or regulations of other carriers as applicable to the mode of transportation. Container size shall be as specified Containers shall
32、comply with 5.2 Marking. In addition to any special marking required by the contract or order (see 6.2), each container shall be marked in accordance with MIL-STD-129. limited to, the following information: Marking shall include, but not be 6 Provided by IHSNot for ResaleNo reproduction or networkin
33、g permitted without license from IHS-,-,-MIL-P-2bSO 73 m 7777706 0123013 q m a. b. d. e. f. g* C. 6. Manufacturers name and location. Material trade name. Net weight and volume. Lot number, batch number and date of manufacture. Shelf life and storage limitations (see 3.4). Number and date of this sp
34、ecification. Contract or purchase order number. NOTES AND CONCLUDING MATERIAL 6.1 Intended use. Plastic molding material in accordance with i this specification is intended for use in a molded component of a Terrier rocket motor. 6.2 Ordering data. Procurement documents should specify the s7 x follo
35、wing: 6.2.1 Procurement requiremenes. a. Title, number and date of this specification. b. Quantity required. c. Inspection conditions when other thanas specified (see 4.3). d. When a preproduction sample is not required (see 3.1, 4.4.1 e. Assigned activity for preproduction inspection (see 4.4.1). f
36、 Lot size if other than as specified (see 4.4.2) . g. Packaging requirements if other than as specified (see 5.1). h. Size of container required (see 5.1). i. Any special markings required (see 5.2). and 6.4). 6.2.2 Contract data requirements. Items of deliverable data required by this specificatio
37、n are cited in the following paragraph herein: Paragraph Data Requirement Applicable DID* 4.6 Quality conformance inspection data *DIDS (Data Item Descriptions/DD Form 1664) for the above 1. requirements will be documented in the applicable ADL (Authorized Data List). (numbered) DIDS when specified
38、on DD Forms 1423 (Contract Data Requirements Lists) and incorporated into applicable contracts. Such data will be delivered as identified on completed 6.3 Supersession information. MIL-P-82650(OS) supersedes WS 14776 and is intended to be used in lieu of OS 10501 for Terrier rocket motor application
39、s. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82650 (OS) 6.4 Preproduction sample waiver. Preproduction samples submitted and approved on a recent contract may be accepted by the procuring activity in lieu of an additional preproduction
40、inspection. When the preproduction sample is waived (see 6.2.l(d), the procurement document should contzin a statement specifying that the standards of workmanship exhibited by the previously approved preproduction sample shall determine the minimum requirements of the current contract or order. 6.5
41、 Suggested source of supply. A product which has met the requirements of this specification in past procurement actions is FM 16771-1 as man.ufactured by Fiberite Corporation, 501 W. Third Street, Winona, IfN 55987. of the procuring activity and is not to be construed as a waiver of any requirement of this specification. This information is for the convenience Custodian: Navy - OS 8 Preparing Activity : Navy - OS Pro j ec t No. 9 3 30-N7 6 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
