Model: MIL-R-25988/3

O-ring

Properties:

Cross-sectional Height

Between 0.269 inches and 0.281 inches

Center Hole Diameter

Between 5.063 inches and 5.137 inches

Hardness Rating

Between 55.0 shore durometer a and 65.0 shore durometer a

Color

Blue

Material

Rubber fluorosilicone class fq

Material Specification

-25988, ty1, cl1, gr60 federal specification all material responses

Specification Data

81349--25988/3-430 government specification

NSN

5331-01-227-4049

Part Number

MIL-R-25988/3

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-25988/3 NSN 5331-01-227-4049

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

47946

FIIG:

A510X0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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