Model: 57495-21

O-ring

Description:

4.343 inches outside diameter, 0.067 inches cross-sectional height, 4.209 inches center hole diameter, 125 elongation percentage.

Properties:

Outside Diameter

Between 4.343 inches and 4.415 inches

Cross-sectional Height

Between 0.067 inches and 0.073 inches

Center Hole Diameter

Between 4.209 inches and 4.269 inches

Elongation Percentage

125

Hardness Rating

75.0 shore durometer a

Material

Rubber fluorocarbon class fpm

NSN

5331-00-166-1055

Part Number

57495-21

Description

O-ring

CAGE

D9182

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 57495-21 NSN 5331-00-166-1055

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

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:

Trailers/Vehicles

End Items End applications NSN 5331-00-166-1055 is a component of

B-52 Aircraft Support Equipment
B-1 Aircraft Support Equipment
Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
Ec-135h/k/p) Aircraft Tf33-pw-102 (c-135e Engine
B-52h) Aircraft Tf33-p-3/5/9 (c/ec-135 Engine
Tf33-100 (e3a/b/c) Aircraft Engine
C-2a (reprocured) Aircraft
Tf-33-p-7 (c-141a/b) Aircraft Engine
Mh-53e Helicopter
Kidd Class Ddg
014084931
Valve Float
010070601
Air Cooler Unit
013066309
Air Cooler Unit

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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