DLA A-A-55462 A-1995 DISK FLEXIBLE TWO-SIDED DOUBLE-DENSITY 3 8 TRACKS PER MILLIMETER (TPMM) (96 TRACKS PER INCH (TPI)) 130 MILLIMETERS (MM) (5 25 INCHES)《3 8磁道每毫米(TPMM)(96磁道每英寸)13.pdf

1、- A-A-55462A 9999974 0366696 935 AA55462- Disk format o1 Unformatted. CI NCH-POUNDI A-A-55462A April 17, 1995 SUPERSEDING A- A- 55462 November 5, 1993 COIICIERCIAL ITEM DESCRIPTION DISK, FLEXIBLE, TWO-SIDED, DOUBLE-DENSITY, 3.8 TRACKS PER MILLIMETER (TM) (96 TRACKS PER INCH (TPI), 130 MILLIMETERS (M

2、l (5.25 INCHES) The General Services Adninistration has authorized the use of this comnercial item description (CID) for all federal agencies. This CID covers the general requirements for a tuo-sided, double-density, 3.8 TPMM (96 TPI), 1. 130 mn (5.25 inches) flexible disk. Flexible disks covered by

3、 this CID are intended for comnercial/industrial applications. 2. Number (PIN) as shown in the following exanple (see 6.1). SCOPE. CLASSIFICATION. This CID uses a classification system uhich is included in the Part or Identification Minimum formatted memory - AA55462 - o1 I I 02 03 Dash nunber (see

4、table I) A CID nunber Preformatted for IBM PC/AT, MS DOS 3.1 and higher. 720 kilobytes (kb) Preformatted for MAC. 3. c LIENT CHARACTERISTICS 3.1 Recording surfaces. This flexible disk shall have two recording surfaces. 3.2 Nunber of tracks. There shall be 80 discrete concentric data tracks in the re

5、cording area for data interchange on each side of this disk. 3.3 Track density. 3.4 Disk density. memory. This flexible disk shall have 3.8 TPMM (96 TPI). This flexible disk shall be double density with a minimum of 1.0 MB of unformatted 3.5 Bits per radian (BPR). The BPR for this flexible disk shal

6、l be 7,958 BRP. 3.6 Jacket. The jacket shall be square with a side 133.35 mn t 0.38 mn (5.250 inches 1.015 inch). Beneficial comnents, recomnendations, additions, deletions, clarifications, etc., and any data which may improve this document should be sent to: 1507 Vilminaton Pike. Davton. OH 45444-5

7、765. or telehone (513) 296-6189. or facsimile (FAX) Defense Electronics Supply Center, ATTN: DESC-ELDM, AMSC N/A DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. FSC 7045 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-

8、,-A-A-55462A = 9999974 0366697 871 9 A-A-55462A 3.7 Jacket thickness. The jacket thickness shall be 1.397 mn to 1.905 mn (.O55 inch to .O75 inch). 3.8 Operating surface tenperature. This flexible disk shall uithstand an operating temperature at its surface in the range from 10C to 51.5“C (50F to 125

9、F) at a relative hunidity of 8 percent to 80 percent. 3.9 Design and construction. meet the requirements of ANSI X3.126. 3.10 Used or reconditioned material. reconditioned or is comprised of used or reconditioned material. 4. QUALITY ASSURANCE PROVISIONS 4.1 product offered meets the salient charact

10、eristics of this CID, and that the product conforms to the producers ow drauings, specifications, standards, and quality assurance practices, and is the same product offered for sele in the comercial marketplace. The Goverrunent reserves the right to require proof of such conformance prior to first

11、delivery and thereafter as may be otheruise provided for under the provisions of the contract. 4.2 Certificate of comliance. submit a DESC certificate of compliance to DESC-ELDM. product meets all the requirements of ANSI X3.126, and all requirements of this CID. In addition, a certificate of conpli

12、ance shall accompany all flexible disks supplied to this CID. 4.3 Market acceptability. quality of the product to be provided under this CID: Flexible disks supplied to this CID shall be as specified herein and shall A manufacturer shall not furnish any flexible disk which is used or Contractor cert

13、ification. The contractor shall certify and maintain substantiating evidence that the Each contractor desiring to be listed as a suggested source of supply shall This certificate shall state that the contractors The following market acceptability criteria are necessary to docunent the a. The company

14、 producing the item mist have been producing a product meeting the requirements of this CID for at least 2 years. The company must have sold 1,000 units meeting this CID in the comnercial marketplace over the past 2 years. b. 5. PACKAGING 5.1 Preservation. packing. and marking. Preservation, packing

15、, and marking shall be as specified in the contract or order. 6. NOTES 6.1 m. section 2 for PIN format example. 6.2 Source of docunents. The PIN should be used for Government purposes to buy comercial products to this CID. See Other Publications AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI X3.1

16、26 - One or Two-Sided, Double-Density, Unformatted, 5.25-inch (130-n), 96-TPI (3.8-TPMM), Flexible Disk Cartridge for 7958 BPR Use- General, Physical, and Magnetic Requirements. (Applications for copies should be addressed to the American National Standards Institute, 11 West 42nd Street, New York,

17、NY 10036-8002). (Industry association specifications and standards are generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 6.3 Govermient users. inventory system, contact Defense Electronics Supply Center, ATTN: DESC-EOC, 15

18、07 Wilmington Pike, Dayton, OH 45444-5520, or telephone (513) 296-5625. To acquire information on obtaining these flexible disks from the Govermnt 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-55462A = 9997774 0166698 708 Vendor corniercial

19、PIN CAGE OCEN9 15600-09-EQPQ 15609-09-EQPQ 15608-09-EQPQ A-A-55462A Vendor corniercial PIN CAGE OEGZ7 54238 54360 _- 6.4 Ordering data. The contract or order should specify the following: a. CID docunent nunber, revision, and CID PIN. b. Quality assurance provisions. c. d. Packaging requirements. 6.

20、5 Susgested sources of swly. added as they becune available. If a bid sample is required. Suggested sources of supply are listed below. Additional sources will be Vendor comercial PIN CAGE 52327 051111-00240 - - CID dash nuther M55462- Vendor Vendor conmercial comercial PIN PIN CAGE 55151 CAGE 74721

21、 549010 478801 -_ - - - O1 02 03 Vendor CAGE nunber OCEN9 OEGZ7 OTWG7 52327 55151 74712 Vendor comercial PIN CAGE OTW7 HlBA411X _- Vendor name and address Syncom Technologies, Incorporated 1000 Syncom Drive Mitchell, SD 57301-4767 (800) 843-9862 BASF Corporation Information Systems Division 35 Crosb

22、y Drive Bedford, MA 01730-1471 (703) 256-7112 Wabash Computer Products, Incorporated 12210 E. 52nd Street Tulsa, OK 74146-6204 (918) 254-9704 Minnesota Mining and MFG Company Data Storage Products Division 3M Center St. Paul, HN 55144-1000 Maxel 1 Corporation of America 22-08 Route 208 Fair Lawn, NJ

23、 07410-2606 (619) 661-6600 (800) 854-0033 At hana, I ncorpora t ed 23955 President Avenue Harbor City, CA 90710-1333 (310) 320-4581 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55462A m 9999974 OLbbb99 644 A-A-55462A 6.6 Changes from Dreviou

24、s issue. to the previous issue due to the extensiveness of the changes. Asterisks are not used in this revision to identify changes with respect CIVIL AGENCY COORDINATING ACTIVITY: GSA - KMR PREPARING ACTIVITY: DLA-ES Project 7045 -DO1 7 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-