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Preformed Packing Back-up Ring NSN 5330-01-547-7677

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 5330-01-547-7677 NSN: 5330-01-547-7677

Features and Characteristics

Cross Sectional Shape
Double spiral
Cross-sectional Thickness
Between 0.025 inches and 0.029 inches
Cross-sectional Height
Between 0.050 inches and 0.058 inches
Center Hole Diameter
2.875 inches
Peripheral Diameter
Between 3.113 inches and 3.117 inches
End Application
Seawolf class ssn
Criticality Code Justification
Zzzy
Material
Plastic polytetrafluoroethylene
Material Specification
Mil-r-8791 military specification single material response
Reference Number Differentiating Characteristics
Special cleaning, packaging, and marking iaw mil-std-1330d
FSC
5330 Packing And Gasket Materials
NIIN
015477677
NSN
5330015477677

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
801-6408785 FIND NO 45
Cage Code:
53711
Status:
A
MSDS:
Part Number:
211039410
Cage Code:
96169
Status:
A
MSDS:
Part Number:
801-6408785 FIND NO 45CP
Cage Code:
03950
Status:
A
MSDS:
Part Number:
211039410CP
Cage Code:
03950
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5330-01-547-7677
What are the manufacturers of nsn 5330015477677?
Does this nsn 5330015477677 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5330015477677
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 5330015477677 contain any precious metals?
No precious metal content.
Does nsn 5330015477677 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5330015477677?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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