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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
03950 NAVAL INVENTORY CONTROL POINT MECHAN

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
ADVM CROSS-SECTIONAL THICKNESS 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM
AAGR CROSS-SECTIONAL SHAPE STYLE SQUARE
ADYU PERIPHERAL DIAMETER 0.738 INCHES NOMINAL
CRMK ANGLE 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
MATT MATERIAL PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
AQNE JOINT TYPE SCARF-BUTT RETAINER
ZZZY REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS REQUIRES SPECIAL CLEANING AND PACKAGING FOR OXYGEN/NITROGEN SERVICE
ADWB DISTANCE BETWEEN ENDS 0.032 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
ADYT CENTER HOLE DIAMETER 0.562 INCHES NOMINAL

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