SEAL, PLAIN ENCASED: ONE FELT, PLUS ONE LEATHER OR SYNTHETIC ELASTOMER SEALING MEMBER SPRING LOADED (SUPERSEDING MS51915D))
普通密封件:一个毛毡 外加一个皮革或合成弹性体密封件 弹簧加载（取代MS51915D））

1995-09-22

SEAL, PLAIN ENCASED: ONE FELT, PLUS ONE LEATHER OR SYNTHETIC ELASTOMER SEALING MEMBER SPRING LOADED (SUPERSEDING MS51915D))
普通密封件:一个毛毡 外加一个皮革或合成弹性体密封件 弹簧加载（取代MS51915D））

1995-09-22

SEAL, PLAIN ENCASED, ONE FELT, PLUS ONE LEATHER OR SYNTHETIC ELASTOMER SEALING MEMBER SPRING LOADED (S/S BY A-A-52524/11) (SUPERSEDING MS51915C)
普通密封件 一个毛毡 加上一个弹簧加载的皮革或合成弹性体密封件（由A-A-52524/11提供）（取代MS51915C）

1995-09-22

SEAL, PLAIN ENCASED, ONE FELT AND ONE LEATHER OR SYNTHETIC ELASTOMER SEALING MEMBERS, SPRING LOADED, SHOULDERED CASE (S/S BY A-A-52524/12) (SUPERSEDING MS51916C)
密封件 普通封装 一个毛毡和一个皮革或合成弹性体密封件 弹簧加载 带肩外壳（S/S BY A-A-52524/12）（取代MS51916C）

1986-10-27