MIL-I-22023B, MILITARY SPECIFICATION: INSULATION FELT, THERMAL AND SOUND ABSORBING FELT, FIBROUS GLASS, FLEXIBLE (16-OCT-1964) [S/S BY MIL-DTL-32585]

MIL-I-22023B, MILITARY SPECIFICATION: INSULATION FELT, THERMAL AND SOUND ABSORBING FELT, FIBROUS GLASS, FLEXIBLE (16-OCT-1964) [S/S BY MIL-DTL-32585]., This specification covers lightweight, faced and unfaced flexible fibrous glass felt for thermal and sound absorbing insulation for use in temperature up to 204 deg. C (400 deg. F).