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Part Number

Part Number:
NSN:
NIIN:
Item Name:
RETAINER , PACKING

Definition:

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.

CAGE Information

Code Company
53711 NAVAL SEA SYSTEMS COMMAND

Federal Supply Class

Title

PACKING AND GASKET MATERIALS

Inclusions:

INCLUDES GENERAL PURPOSE OIL GREASE, AIR, LIQUID, GAS, AND CHEMICAL SEALS; OAKUM; PREFABRICATED GASKETS AND SEALS DESIGNED FOR A SINGLE SPECIFIC APPLICATION.

Exclusions:

EXCLUDES O-RINGS (FSC 5331); BULK MATERIAL ITEMS, SUCH AS; RUBBER, CORK, AND ASBESTOS SHEETS AND STRIPS (FSG 93); LIQUID GASKET MATERIALS (RTV, PERMATEX, ETC.) (FSG 80); RFI AND EMI SEALS AND GASKETS (FSC 5999), AND ALL SEAL RETAINERS.

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
ADVM CROSS-SECTIONAL THICKNESS 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM
AAGR CROSS-SECTIONAL SHAPE STYLE SQUARE
ADYU PERIPHERAL DIAMETER 1.490 INCHES MINIMUM AND 1.494 INCHES MAXIMUM
MATT MATERIAL PLASTIC TETRAFLUOROETHYLENE OVERALL
CRMK ANGLE 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
ADYT CENTER HOLE DIAMETER 1.250 INCHES NOMINAL
AQNE JOINT TYPE SCARF-BUTT RETAINER
ADVN CROSS-SECTIONAL HEIGHT 0.075 INCHES MINIMUM AND 0.087 INCHES MAXIMUM
ADWB DISTANCE BETWEEN ENDS 0.047 INCHES MINIMUM AND 0.093 INCHES MAXIMUM

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