Model: MIL-R-25988

O-ring

Properties:

Cross-sectional Height
Between 0.135 inches and 0.143 inches
Center Hole Diameter
Between 6.194 inches and 6.274 inches
Hardness Rating
Between 75.0 shore durometer a and 85.0 shore durometer a
Material
Rubber fluorosilicone class fq
NSN
5331-01-425-6077
Part Number
MIL-R-25988
Description
O-ring
CAGE
81349

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

Part MIL-R-25988 NSN 5331-01-425-6077

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
47946
FIIG:
A510X0
Concept No.:
App. Key:
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
BA
CRITL:
X

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Schedule B and Export
  • Schedule B: 4016930000
  • SITC: 62999
  • End Use: Industrial rubber products
  • NAICS: 339991
  • USDA: 1

Freight Class: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber

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