B17045-1

B170451 Preformed Packing Back-up Ring
Home » Catalog » O-rings & Seals (p. 189) » Preformed Packing Back-up Rings (p. 1) » Part Number B17045-1

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Datasheet. B17045-1 specification

Cross-sectional Shape Style
The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.

solid

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

ring, backup

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

plastic

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

MIL-R-8791 government standard

Answers.

What material is the preformed packing back-up ring made of ?

Plastic

What is the NSN for B17045-1?

5330-01-620-0039

What's the federal classification of B17045-1?

FSC 5330 ⁓ Packing and gasket materials

Note-this fsc includes only seals and gaskets designed for standard use. seals, gaskets and packing are made from materials specifically designed and constructed to resist deterioration from the action of heat, gas, chemicals, liquids, and used to fill a cavity and create a tight seal. similar materials used to make seals, gaskets, and packing are available in bulk form, refer to fsg 93, fsg 80, and fsg 83.

Excluding 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.

NSN 5330-01-620-0039 BACK-UP RING,PREFORMED PACKING

ring, backup

NIIN
016200039
NIIN Date
06/26/13
Schedule B
 
Name Code
66949
FIIG
A528B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Belgium 
  • - Canada 
  • - New Zealand 

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Similar by Design Other back-up rings with similar characteristics

Nothing similar to this part number was found in our inventory

B17045-1 / Back-up ring,preformed packingWhat is the formal definition of this item?

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.