National Item Identification Number
01-501-9995
015019995
5330-01-501-9995
5330015019995
National Stock Number
Item Name
BACK-UP RING,PREFORMED PACKING
Federal Supply Class
5330
Description
A circular shaped item with an aperture manufactured to predetermined dimensions, constructed with a rectangular cross section that may be solid, with joint, or in a helical form that facilitates spiral wrap installation. It prevents seal extrusion under pressure and is designed to fit on the down-pressure side of a gland groove with a PACKING, PREFORMED or O-RING.
Commercial and Government Entity Code (Supplier Data)
81343
0ASY6
DERBYSHIRE MARINE PRODUCTS DIVISION
DBA DERBYSHIRE MARINE PRODUCTS DIV
5100 BELFIELD AVE.
PHILADELPHIA
PA
19144
215-844-3200
0ASY6
DERBYSHIRE MARINE PRODUCTS DIVISION
DBA DERBYSHIRE MARINE PRODUCTS DIV
5100 BELFIELD AVE.
PHILADELPHIA
PA
19144
215-844-3200
81343
Reference Numbers (Part Numbers)
AS8791
MPL2532 PC 7
M1420-3-EL
M8791/1-223
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
CROSS-SECTIONAL SHAPE STYLE
SPE
Required Description
PLASTIC POLYTETRAFLUOROETHYLENE
MIL-R-8791,M8791/1-223 MIL SPEC SINGLE MATERIAL