Preformed Packing Back-up Ring

Model / MPN: M8791/1-007CP | NSN: 5330-01-543-5952

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.

Product Details

NATO Stock Number

5330-01-543-5952

Sold in multiples of

DEMIL

Cross Sectional Shape

Single turn spiral

Cross-sectional Height

Between 0.048 inches and 0.052 inches

Center Hole Diameter

0.154 inches

Peripheral Diameter

Between 0.206 inches and 0.208 inches

Criticality Code Justification

Zzzy

Material

Plastic polytetrafluoroethylene

Material Specification

Sae as8791 assn standard single material response

Reference Number Differentiating Characteristics

Cleaning and packaging per mil-std-1330d

M8791/1 Series Parts

Pricing and Availability

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Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

M8791/1-007CP Cross Reference

AS8791/1-007CP
AS8791-007CP
M8791/1-007CP