1、ZZ-T-391EJune 23, 1982SUPERSEDINGFed. Spec. ZZ-T-391DDecember 11, 1970TIRES, SOLID RUBBER, AND WHELLS, SOLID RUBBERTIKE (Industrial)This Federal Specification was approved by the GeneralServices Administration for the use of all agencies.1. SCOPE AND CLASSIFICATION1.1 Scope. This specification cover
2、s commercial industrial tires, of both solid andcushion elastomer construction, with their accessories, applicable to industrial forklifttrucks, tow tractors, warehouse trailers, similar materials handling equipments and spe-cial low speed vehicles.1.2 Classification. Tires shall be of the following
3、 types, styles, compound codes,sizes, special design, and construction.1.2.1 Types and Styles. The tire and wheel, band, or rim assemblies shall be of thefollowing types and styles as specified (see 6.2 and 6.3):Type I Cured on (wheel assembly)Style 1 Standard solid, smooth tread.Style 2 Standard so
4、lid, nondirectional traction(nonskid) tread.Style 4 Cushion solid, smooth tread.Style 5 Cushion solid, nondirectional traction(nonskid) tread.Type II Pressed on (base band assembly)Style 1 Standard solid, smooth tread.Style 2 Standard solid, nondirectional traction(nonskid) tread.Style 3 Standard so
5、lid, rib (grooved tread.Style 4 Cushion solid, smooth tread.Style 5 Cushion solid, nondirectional traction(nonskid) tread.Style 6 Cushion solid, rib (grooved) tread.Pressed on hi-load (base band assembly) (see 3-3.1.)Style 1 Standard solid, smooth tread.Style 2 Standard solid, nondirectional tractio
6、n(nonskid) tread.Style 3 Standard solid, rib (grooved) tread.Style 4 Cushion solid, smooth tread.Style 5 Cushion solid, nondirectional tractiori(nonskid) tread.Style 6 Cushion solid, rib (grooved) tread.Type IV Cushion, hollow, lug baseTYPE V Industrial solid-tire-on-pneumatic-rimStyle 1 Standard so
7、lid, smooth tread.Style 2 Standard solid, nondirectional traction (nonskid tread.Style 3 Standard solid, rib (grooved) tread.FSC 2630Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ZZ-T-391E1.2.2 Compound Code. In accordance with standard identificat
8、ion for the tireindustry, the compound coding shall be by color code medallion background. Unless other-wise specified herein, the elastomer used in tire manufacture shall be for universalservice, red background. When specified (see 6.2), the elastomer used shall be of oneor more of the remaining co
9、lored backgrounds.CodeCodeCodeCodeCodeCodeCodeCodeRedBlue -Yellow -White -Green -Purple -Brown -Orange -Universal service.Low power consumption.Oil resisting compound.Static conductive compound.Nonmarking compound.Ozone resisting (OZ) compound.Heat resisting (HR) compound.Low temperature resisting c
10、ompound.1.2.3 Sizes. The tires, tire and rims, or tire and wheel assemblies shall be of thesizes listed in the Tire and Rim Association (T New York; Philadelphia: Washington, DC; Atlanta; Chicago; KansasCity, MO; Fort Worth; Houston; Denver; San Francisco; Los Angeles; and Seattle, WA.(Federal Gover
11、nment activities may obtain copies of Federal Specifications, Standards,Handbooks, and the Index of Federal Specifications and Standards from establisheddistribution points in their agencies.)Militarv Specifications:MIL-P-114 - Preservation, Methods of.MIL-F-15011 - Pallets, Material Handling, Wood,
12、 Post Construction, 4-way Entry.MIL-C-16173 - Corrosion Preventive Compound, Solvent Cutback, Cold-Application.2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ZZ-T-391EMiliatary StandardsMIL-STD-105 - Sampling Procedures and Tables for Inspection by
13、 Attributes.MIL-STD-129 - Marking for Shipment and Storage.MIL-STD-193 - Painting Procedures, Tactical Vehicles (Tracked and Wheeled).MIL-STD-417 - Rubber Compositions, Vulcanized General Purpose, Solid (Symbols andTests).MIL-STD-186 - Cushioning, Anchoring, Bracing, Blocking, and Waterproofing; wit
14、hAppropriate Test Methods.MS35393 - Tire, Solid Rubber: Standard and Cushion, Industrial(Copies of Military Specifications and Standards required by suppliers in connectionwith specific procurement functions should be obtained from the procuring activity or asdirected by the contracting officer.)2.2
15、 Other Publications. The following documents form a part of this specification tothe extent specified herein. Unless otherwise indicated, the issue in effect on date ofinvitation for bids or request for proposal shall apply.Tire and Rim Association (T manufacturers name or trademark, nominal tire si
16、ze, date ofmanufacture of recognizable and commonly used date code, type, style, and compound code(see 1.2).3.8 Workmanship. All workmanship on the tires and on their components shall be inaccordance with the manufacturing and production standards of the industrial tire andcomponent industry. Tires
17、shall be correctly fabricated and quality shall be consistentwithin the tire manufacturers” or the T however, overspray shallbe avoided.4. QUALITY ASSURANCE PROVISIONS4.1 Lot Purchases.4.1.l Responsibility for Inspection. If specified in the contract or purchase order(Note: To require inspection, th
18、e purchasing agent or contracting officer shouldconsider the number of tires being purchased. A sample size is 4 tires), the supplieris responsible for performance of all inspection requirements as specified herein (see6.2). Unless otherwise specified in the contract or order, the supplier may use h
19、is ownor any other facilities suitable for the performance of the inspection requirementsspeccified herein, unless disapproved by the Government. The Government reserves theright to perform any of the inspections set forth in the specification where suchinspections are deemed necessary to assure the
20、 supplies and services conform toprescribed requirements.4.1.2 In-Process Inspection. Inspection shall be performed throughout the manufac-turing process to assure that no deviation is made from the indicated requirements.These shall include all processes such as preparation of chemicals for compoun
21、ding, com-pounding of rubber, tire assembly, forming, and vulcanizing. Wherever a deviation isnoted, correction shall be made. Failure to make immediate correction may cause rejec-tion of the affected lot of tires.4.1.3 inspection of Component and Material. In accordance with (4.1.1), the contrac-to
22、r is responsible for insuring that components and materials used are manufactured,sampled, examined, and tested in accordance with the requirements of this specification.4.1.4 Material Furnished for TeStS. Tires and all related materials used for or intests shall be furnished by the manufacturer wit
23、hout cost to the Government.4.1.5 Sampling for Inspection and Acceptance. Sampling for inspection and acceptanceshall be performed in accordance with the provisions set forth in MIL-STD-105. A samplesize shall consist of 4 tires (2 tires for physical examinations and adhesion test, and2 tires for in
24、door endurance and hidden defects) for each type, in style 2 being tested.4.1.6 Inspection Lot. The inspection lot shall consist of all complete tires of thesame type, style, compound code, and size offered for acceptance at one time.8Provided by IHSNot for ResaleNo reproduction or networking permit
25、ted without license from IHS-,-,-ZZ-T-391E4.1.7 Physical Examination. The sample unit. (of a sample) shall be one completelyabricated tire (see 4.1.5). Physical examination of each sample shall be in l ccordancewith Table II, inspected for:Hardness (see 3.6.4)Outside Diameter (see 3.5.1)Section Widt
26、h (see 3.5.1)Rim Contours (see T not of size, symbols,or letters specificd,9.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ZZ-T-391E4.2 Inspection and Preparation for Delivery.4.2.1 Quality Conformance Inspection of the Pack.4.2.1.1 Unit of Product
27、. For the purpose of inspection, a completed pallet preparedfor shipment shall be considered a unit of product. A lot shall be the number ofpallets offered for delivery at one time.4.2.1.2 Sampling. Sampling for examination and testing shall be in accordance withMIL-STD-105, inspection level S-4.4.2
28、.1.3 Examination. Samples selected in accordance with 4.2.1.2 shall be examinedfor the defects specified in Table IV. AQL shall be 4.0 defects, expressed in terms ofdefects per hundred.Table IV109 Markings Omitted, incorrect, illegible, of incorrectsize, location, sequence, or method ofapplication.1
29、10 Cleaning Not clean.111 Preservation Preservation incorrectly applied or missingor not as specified.112 Packing Pallets not as specified. Length exceeds 72inches, or shortest dimension less than 28inches.113 Materials Components missing, damaged, or otherwisedefective.114 Workmanship Inadequate ap
30、plication of components suchas loose strapping, inadequate stapling,blocking and cushioning inadequate, missingor incorrect. Load not rigid. Tires notloaded flat.115 Weight Weight per pallet more than 2,000 pounds.4.2.1.4 Pack Test. Test the pack in accordance with the pendulum test and therailroad-
31、car test specified in MIL-STD-1186. Nonconformance to 5.2.I.l shall constitutefailure of this test.5. PREPARATION FOR DELIVERY5.1 Preservation. Preservation shall be levels A or C as specified (see 6.2).5.1.1 Level A. Each tire shall be cleaned in accordance with mIL-P-116, process C-1and thoroughly
32、 dried. All unpainted q etal surfaces shall be coated with a preservativeconforming to MIL-C-16173, grade 1.5.1.2 Level C. Tires shall be cleaned and the metallic portion preserved in a mannerto assure protection against corrosion from the supply source to the first receivingactivity. The suppliers
33、standard practice may be used when it meets theserequirements.10Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ZZ-T-391E5.2 Packing. Packing shall be levels A or C as specified (see 6.2).5.2.1 Level A. Unless otherwise specified (see 6.2), the tires
34、 shall be packed onpallets conforming to Federal Specification NN-P-71, Type IV, Croup 111 Woods orMIL-P-15011. Unless otherwise specified herein, the standard size of the pallet shall be40 to 48 inches. When required, the standard pallet dimensions may be increased ordecreased to the size demanded
35、by the dimensions of the tires to be loaded, providedthat the following conditions are observed: the longest dimension shall not exceed 72inches and the shortest dimension shall be not less than 28 inches, and shall permitthe loaded pallet to be handled by forklift and pallet lift trucks.5.2.1.1 Pac
36、king Procedure . Tires shall be packed in a flat position. The loadarrangement with blocking, bracing, and 1-1/4 by 0.035 inch strapping, conforming toQQ-S-781, type I or II, class B, -shall provide a compact rigid load that will withstandwithout damage, impact forces, vibration, and compression enc
37、ountered during shipment andstorage when tested as specified in 4.2.1.4. The gross weight shall not exceed 2,000pounds.5.2.2 Level C. Tires, preserved as specified in 5.1, shall be packed in a manner toassure carrier acceptance and safe delivery to destination at the lowest transportationrate for su
38、ch supplies. Packing shall comply with Uniform Freight Classification rulesor National Motor Freight Classification rules.5.3 Marking.5.3.1 Civil Agencies. In addition to any special marking required by the contract ororder, shipping containers and pallets shall be marked in accordance with Fed. Std
39、 No.123.5.3.2 Military Agencies. In addition to any special marking required by the contractor ordre, shipping containers and pallets shall be marked in accordance with MIL-STD-129.5.3.3 Special Marking. Each tire shall be identified using two paper tags as speci-fied in MIL-STD-0129. Each tag and e
40、ach exterior container and pallet shall be clearlymarked with the following:(a)(b)(c)(d)(e)(f)(g)(h)(i)Tire (as applicable).Specification number.Name of supplier (and name of manufacturer if not the same).Government order number (or contract number if order number not assigned).Size of tire.Type and
41、 style of tire.Compound code of tire (when specified).Rate of pack.Shelf life expiration date.6. NOTES6.1 Intended Use. The solid rubber tires covered by this specification are intendedfor use industrial materials handling equipment such as forklift, power andhandtrucks, tractors, and trailers not i
42、ntended for operation at a speed of over 10miles per hour.6.2 Ordering Data. Purchasers should select the preferred options permitted hereinand include the following information in the procurement documents:(a) Title, number, and date of this specification.(b) Types and styles of tire assemblies req
43、uired (see 1.2.1).(c) When compound code(s) other than code red, for Universal Service, arc required(see 1.2.2 and 3.4).(d) Size(s) of tire assemblies required (see l.2.3).(e) When tire assemblies of special design and construction are required andequipment specification or other requirements are ne
44、eded (see 1.2.4).(f) Applicable requirements for types I, II, and III base bands and wheels (see3.5.2).(g) When type V tires are to be furnished unmounted (see 3.5.3).11Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ZZ-T-391E(h) Whether remountable
45、rims or disc wheels are required (see 3.5.3).(i) When exposed metal surfaces of base bands, wheels, or rims require paintingas specified in 3.5.4.(j) When indoor endurance as specified in 3.6.1 is required.(k) When marking is to be ocher than as specified (see 3.7).(1) Selection of applicable leVel
46、of preservation and packing required (see 5.1and 5.2).(m) Size and construction of loading pallets when different from standard (see5.2.1).(n) When source inspection as specified in 4.1 is required.6.3 Type and Style Definitions. Terms used in the classification of types and styles(see 1.2.1) are de
47、scribed as follows:(a)(b)(c)(d)(e)(f)(g)(h)(i)Cured On. Tire bonded directly to the metal wheel during the molding andvulcanizing operation.Pressed On. Tire bonded directly to a remountable, metal base band during the-molding and vulcanizing operation? the latter to be subsequently pressed on toa me
48、tal wheel.Standard Solid. Tire of comparatively low section height (including baseband) - usually 2 inches or less.Hi-load Solid. Solid tires in which materials have been used such that theload carrying ability of any given size may be increased to the limitdesignated by the manufacturer of the spec
49、ial tire.Cushion Solid. Tire having a sectional height (including base band)relatively larger than the standard tread - usually 2-1/2 inches or over.This does not include semi-pneumatic type tires.Cushion Hollow. Tires having a hollow torus form with a lug base mounted on amatching lug based rim wheel. This tire assembly is also called a zeropressure type tire.Smooth Tread. Tire having a smooth road surface.(Nonskid)
