Parker - Packing Ring - A2749

Price:

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Parker - Packing Ring - A2749

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Parker - PACKING RING - A2749
Genuine OEM Part


Description: Packing Ring/Seal Wiper/Seal 
Part number: A2749 
Alternate part number: 4615A2749
Replacement for part numbers: A2161, A2161TYPEB
Seal: PolyPak
Material: Molythane
Seal Style: Type B


Type B Polypak
Type B PolyPak seals add a back-bevel lip to the Deep PolyPak shape and thus align the seal interface near the centerline of the O-spring to provide increased squeeze (and sealability). This highly stable confriguration provides excellent low pressure seating as well as "super-pressure" capability. Available in all sizes from 1/8" to over 90" diameter.

Wipers are designed to prevent any contamination of the system by external particles or other environmental impacts during translatoric movements in cylinders and actuators. They also provide the static sealing function on the cylinder head versus the atmosphere. Some double-acting designs also reduce the drag oil film during outstroke.



Item Description:

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.


Used for Cessna Aircraft Main Landing Gear Strut Assembly

Fits the following Cessna Aircraft models:

  • Cessna 310
  • Cessna 320
  • Cessna 401
  • Cessna 402
  • Cessna 411
  • Cessna 414
  • Cessna 421


Features and Characteristics

FSC     :     5330 Packing and Gasket Materials
NIIN     :     010845336
NSN     :     5330-01-084-5336




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Additional info
Colors Black
Dimensions
Dimensions (W x H x D) 4.50" x 4.90" x 0.40" Inches
Length 4.90" Inches
Weight 0.02 lbs
Specifications
8130-3 Eligible Yes
ATA Chapter 32 ATA Landing Gear
Available Conditions NE / NS
Cage Code 71379
Country of origin United States of America
ECCN / USML 9A991
FAA Approval Code PC
Hazmat(Y/N) N
Material Molythane
NSN 5330-01-084-5336
Schedule B 8803.30.0010
Total Shelf Life (days) 1460
Type Seal, Wiper
Units of Measure (UoM) Each
Brand Parker Aerospace