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Datasheet. B4978 specification
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
orig mfg NAME-BACK-Up ring
Answers.
Schedule B number: 8412909005
Parts of linear acting hydraulic power engines and motors
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 5330-01-500-0869 RING,WIPER
orig mfg name-back-up ring
- NIIN
- 015000869
- NIIN Date
- 08/13/02
- Schedule B
- 8412909005
- Name Code
- 20256
- FIIG
- A08400
- 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Brazil
- - Turkey
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B4978 / Ring,wiperWhat is the formal definition of this item?
A circular, single or multipiece, rigid, metallic or nonmetallic item having a centrally located hole with a sharp edge on the inside periphery. it is supplied in various cross-sectional shapes and is designed to be installed in a cylinder, shock strut, or similar device to remove excess oil, dirt, ice, and/or foreign material from a piston, ram, or sliding rod. excludes packing, preformed; ring, piston; and seal ring, metal.
