Abstract: An apparatus (10) includes a base (30) defining a passage (32) which receives a seat belt tongue (16). The base (30) has an intermediate portion (108) between a pair of opposite end portions (106 and 112). The apparatus (10) further includes a housing (28) which contains the base (30). The housing (28) and the end portions (106 and 112) of the base (30) have structures (100, 128, 132) that interlock following movement of the base (30) within the housing (28) in a first direction and subsequently in a second, opposite direction. One of the housing (28) and the intermediate portion (108) of the base (30) defines a slot (144). The other of the housing (28) and the intermediate portion (108) of the base (30) defines a tab (102) which moves into abutment with a surface (146) in the slot (144) upon movement of the base (30) in the second direction.