Model: 20-21

Access Cover

Properties:

Cross Sectional Shape

Flat, round rib reinforced

Hole Diameter

0.344 inches

Bolt Circle Diameter

2.688 inches

Flange Thickness

0.281 inches

Outside Diameter

3.250 inches

Edge Shape

Round, multi holes

Bolt Circle Hole Quantity

Body Thickness

0.453 inches

Securing Device Type

Threaded fastener

Mounting Opening Shape Style

Unthreaded hole

Material

Iron cast

Surface Treatment

Paint

NSN

5340-00-397-3114

Part Number

20-21

Description

Cover,access

CAGE

97674

A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes all covers not specifically designed to provide access for the purposes listed above.

Part 20-21 NSN 5340-00-397-3114

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29785

FIIG:

A531C0

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:

0.7000lbs

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:

133300

UFC:

63220

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 7325990000
SITC: 69963
End Use: Finished metal shapes
NAICS: 331511
USDA: 1

Freight Class: Cast articles of iron or steel nesoi