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Preformed Packing Back-up Ring NSN 5330-01-528-8499

Item 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.

NSN 5330-01-528-8499 NSN: 5330-01-528-8499

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Features and Characteristics

Cross Sectional Shape
Double spiral
Cross-sectional Thickness
Between 0.046 inches and 0.052 inches
Cross-sectional Height
Between 0.138 inches and 0.156 inches
Center Hole Diameter
5.250 inches
Peripheral Diameter
Between 5.724 inches and 5.728 inches
End Application
Seawolf class submarine
Criticality Code Justification
Zzzy
Part Name Assigned By Controlling Agency
Retainer, packing back-up
Material
Plastic polytetrafluoroethylene
Material Specification
Mil-r-8791 military specification single material response
Reference Number Differentiating Characteristics
Special cleaning for oxygen/nitrogen service
FSC
5330 Packing And Gasket Materials
NIIN
015288499
NSN
5330015288499

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS28782-58CP
Cage Code:
03950
Status:
A
MSDS:
Part Number:
211007889CP
Cage Code:
03950
Status:
A
MSDS:
Part Number:
801-6404589 FIND 12CP
Cage Code:
03950
Status:
A
MSDS:
Part Number:
DF330618 FIND 12CP
Cage Code:
03950
Status:
A
MSDS:
Part Number:
CD-023-35-12CP
Cage Code:
03950
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5330-01-528-8499
What are the manufacturers of nsn 5330015288499?
Does this nsn 5330015288499 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5330015288499
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.
Does nsn 5330015288499 contain any precious metals?
No precious metal content.
Does nsn 5330015288499 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5330015288499?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
66949
FIIG:
A528B0
App. Key:
Cond. Code:
1
Status:
A

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