MIL-F-81738 Flare, Aircraft, Parachute, Mk 45 Mod 0This specification covers the manufacture and preparation for delivery of the Flare, Aircraft, Parachute, MK 45 Mod 0, the MK 45 Aircraft Parachute Flare and Drogue Tray, and the methods of examination and tests upon which product acceptance shall be based. The flares or Mk 45 drogue trays are a delay type flare, designed for launching from aircraft, which produce a parachute suspended illuminating candle. The flare or Mk 45 drogue tray is classified as Class B Explosives \(Code of Federal Regulations 49 CFR 71-78\) ad IIC Explosive \(Coast Guard Rules and Regulations for Military Explosive and Hazardous Munitions CG 108\).

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MIL-F-81738 (AS)

evaluation, and acceptance as specified in Table III, as applicable. Any production of

the item prior to production of an acceptable preproduction sample by the contractor

or authorization by the procuring agency shall be at the risk of the contractor. The

sample shall be prepared for delivery as specified in Section 5.

4.1.2 Production lot. A production lot shall consist of 501 to 10,000 flares or

Mk 45 drogue trays offered for delivery at one time including test samples. The

samples shall not be applied as part of the quantity specified for delivery by the con-

tract or purchase order. Sampling, examination, testing and acceptance of production

lots shall be performed as specified in the steps given below. Upon rejection of any

lot, the next lot, in addition to the applicable sampling plan, shall be examined, tested

and accepted for the requirement(s) which caused the rejection, unless the require-

ment(s) is included in the applicable plan. Each production lot shall contain only

primers produced during one year by one manufacturer.

STEP 1. Upon starting production or delivery of an acceptable preproduction sample,

as applicable, the first two production lots shall be examined, tested in sequence, and

accepted in conformance with Table III, Sampling Plan A.

STEP 2. Production lots other than those defined in Step 1 shall be examined, tested

in sequence and accepted in conformance with Table III, Sampling Plan B, except that

one lot shall be randomly selected from each five consecutive production lots and

examined, tested in sequence and accepted in conformance with Table III alternately

selecting Plan A and Plan C.

4.1.3 Test equipment and gages. All test equipment and gages shall be supplied

and maintained by the contractor as specified in Specification MIL-I-45607. The

contractor shall maintain a calibration system as specified in Specification

MIL-C-45662.

4.1.3.1 Test conditions. The maximum allowable tolerances on test conditions

specified herein, unless otherwise specified, shall be as follows:

(1) Temperature: Plus or minus 3�C, 5.4�F.

(2) Relative humidity: Plus 5 percent, minus 0 percent.

(3) Vibration amplitude: Plus or minus 10 percent.

(4) Vibration frequency: Plus or minus 2 percent.

4.1.4 Tests and examinations classification. The tests and examinations herein

are classified in regard to relative importance as Critical, Major or Minor. Tests and

examinations classified as Critical are identified by the symbol (C) and Major by (M).

The number following the symbol indicates the serial number of the test or exami-

nation. Tests which are not annotated are classified Minor.

4.2 Examinations.