MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 81349 |
CROSS-SECTIONAL SHAPE STYLE | SQUARE |
CROSS-SECTIONAL THICKNESS | 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM |
CROSS-SECTIONAL HEIGHT | 0.100 INCHES MINIMUM AND 0.116 INCHES MAXIMUM |
DISTANCE BETWEEN ENDS | 0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM |
CENTER HOLE DIAMETER | 0.312 INCHES NOMINAL |
PERIPHERAL DIAMETER | 0.420 INCHES MINIMUM AND 0.424 INCHES MAXIMUM |
JOINT TYPE | SCARF-BUTT RETAINER |
ANGLE | 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM |
CRITICALITY CODE JUSTIFICATION | ZZZW |
MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
DEPARTURE FROM CITED DOCUMENT | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
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. |