1720-00-620-4244 PISTON Index 1720-00-620-4247 STIFFENER

National Stock Number:
5330-00-620-4246

Federal Supply Class:
5330

National Item Identification Number:
006204246

Description:
RETAINER,PACKING

Detail:
An item designed to fit over a packing gland by mating with a surface of a second part which together will retain into a narrow groove or confined space the PACKING, PREFORMED or O-RING, or an item designed to fit over a rod or shaft, to mate with a stuffing box to confine PACKING MATERIAL. It may function as a static or dynamic seal retainer with the packing located on, around, or in the centerline direction of the rod or shaft axis. It may have holes or joints for mounting, be threaded or unthreaded. See also PACKING NUT and PACKING NUT, STUFFING TUBE.


Manufacturer Information:
21-41412-180020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
ATTACHMENT FEATURE QUANTITY12
ATTACHMENT HOLE DIAMETER0.438 INCHES NOMINAL
ATTACHMENT METHODROUND HOLE
CENTER HOLE DIAMETER4.500 INCHES NOMINAL
CROSS-SECTIONAL THICKNESS0.438 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT1.000 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLECUP
FSC APPLICATION DATAAIRCRAFT LAUNCHING EQUIPMENT
PERIPHERAL DIAMETER7.875 INCHES NOMINAL


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