Model: 66A79B69-2

Recessed Washer

Properties:

Hole Diameter

0.906 inches

Outside Diameter

1.750 inches

Material Thickness

Between 0.060 inches and 0.062 inches

Top Recess Diameter

0.937 inches

Bottom Recess Angle

90.0 degrees

Top Recess Angle

90.0 degrees

Bottom Recess Diameter

0.937 inches

Surface Finish

63.0 microinches bottom

Surface Finish

63.0 microinches top

Part Name Assigned By Controlling Agency

Navy special project

Material

Copper alloy 642

Material Specification

Qq-c-465 federal specification single material response

Style Designator

Recessed both sides

NSN

5310-00-455-2432

Part Number

66A79B69-2

Description

Washer,recessed

CAGE

30003

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

Part 66A79B69-2 NSN 5310-00-455-2432

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15933

FIIG:

A022B0

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:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415210000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper washers including spring washers not threaded