L-S-125B, FEDERAL SPECIFICATION: SCREENING, INSECT, NONMETALLIC (03-FEB-1972)

L-S-125B, FEDERAL SPECIFICATION: SCREENING, INSECT, NONMETALLIC (03-FEB-1972)., This specification covers the requirements for two types of screening made of plastic filaments and one type of screening made of plastic coated or impregnated fibrous glass yarn.