Model: 2-309 N304-75

Preformed Packing

Properties:

Cross Sectional Shape
O-ring
Tempurature Rating
-65.0 degrees fahrenheit and 275.0 degrees fahrenheit
Cross Section Outside Diameter
Between 0.205 inches and 0.215 inches
Cross-sectional Height
Between 0.205 inches and 0.215 inches
Center Hole Diameter
Between 0.407 inches and 0.417 inches
Peripheral Diameter
Between 0.817 inches and 0.847 inches
Hardness Rating
70.0 shore durometer a and 80.0 shore durometer a
Operating Medium
Hydraulic fluid, petroleum base
Functional Description
Dynamic or static use
Color
Black
Material
Rubber butadiene-acrylonitrile class nbr
Material Specification
Mil-p-25732 military specification single material response
Reference Data And Literature
Astm d2000 2bg720b14b34eo14eo34f17ea4
Specification Data
96906-ms28775/inactive/ government standard and 81343-as568 professional/industrial association standard
NSN
5330-01-210-2697
Part Number
2-309 N304-75
Description
Packing,preformed
CAGE

A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.

Part 2-309 N304-75 NSN 5330-01-210-2697

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04521
FIIG:
A032A0
Concept No.:
App. Key:
AC
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:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 3926904500
  • SITC: 89399
  • End Use: Other industrial supplies
  • NAICS: 339991
  • USDA: 1

Freight Class: Gaskets,washers & other seals

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