Model: 21158-18 28

Plain Encased Seal

Properties:

Tempurature Rating

-40.0 degrees fahrenheit and 200.0 degrees fahrenheit

Accommodated Shaft Diameter

2.500 inches

Seal Width

0.375 inches

Accommodated Shaft Maximum Rated Speed

3000 feet per minute

Case Style

Square

Housing Bore Diameter

3.751 inches

Hardness Rating

80.0 shore durometer a

Sealing Element Style

Angular

Maximum Pressure Rating

7.0 pounds per square inch

Color

Black

Material

Rubber synthetic sealing element

Material

Steel case

NSN

5330-00-531-2609

Part Number

21158-18 28

Description

Seal,plain Encased

CAGE

73680

A pliable rubber, felt, leather, or composition ring-shaped element, split or solid; with or without spring or spreader, having a metal shell on all or a portion of at least two of the outer surfaces. It may be designed to be either bolt mounted or pressmounted between fixed and moveable parts to form a tight and effective seal by the pressure of the spring or spreader or the resiliency inherent in the element material. Excludes packing with retainer.

Part 21158-18 28 NSN 5330-00-531-2609

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04214

FIIG:

A032A0

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194120

UFC:

95100

LTL:

RATING VARIABLE

LCL:

WCC:

596

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8484200000
SITC: 74920
End Use: Industrial machines, other
NAICS: 339991
USDA: 1

Freight Class: Mechanical seals