Model: 4020637

Metal Seal Ring

Properties:

Cross Sectional Shape

Plain rectangular, straight face

Inside Diameter

4.000 inches

Ring Style

Contracting concentric

Radial Wall Thickness

Between 0.0950 inches and 0.1050 inches

Overall Width

Between 0.1540 inches and 0.1550 inches

Joint Style

Step joint

Metallic Hardness Rating

32.0 rockwell c

Material

Steel

Surface Treatment

Chromium outside periphery

Fsc Application Data

Engine, acft, turbofan

NSN

5330-00-343-7437

Part Number

4020637

Description

Seal Ring,metal

CAGE

71687

A circular shaped item designed to be installed in a specially prepared groove or counterbore to provide a low pressure seal. It may be supplied in various cross-sectional shapes and is cut through at one point to allow for installation and fitting. Excludes items whose primary function is to provide sealing, wiping, or wearing surface capabilities for piston configurations. See also ring, piston and ring, wiper.

Part 4020637 NSN 5330-00-343-7437

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

21205

FIIG:

A08400

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:

125.0

LCL:

100.0

WCC:

596

TCC:

SHC:

ACC:

Equipment for Aircraft

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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