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Ring Spacer

Model / MPN: 881824 | NSN: 5365-00-595-7039
ITAR Registered seal

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

Product Details
NATO Stock Number
Sold in multiples of
Inside Diameter
3.078 inches
Outside Diameter
Between 3.542 inches and 3.545 inches
Overall Thickness
Between 0.076 inches and 0.080 inches
Hardness Rating
Between 38.0 rockwell c and 42.0 rockwell c
Steel comp 1095
Surface Treatment
Fsc Application Data
1. Starter, engine, air turbine
Solicitation Description Qty UOM Close Date
SPE4A618T31F7 Spacer, Ring 5 EA 06/28/2018

Pricing and Availability

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881824 Cross Reference
  • 881824
  • 881824