Model: 78938

Recessed Washer

Special Features:

Colored red

Properties:

Hole Diameter

Between 0.940 inches and 0.946 inches

Outside Diameter

Between 1.058 inches and 1.068 inches

Overall Height

0.062 inches

Recess Depth

0.032 inches

Material Thickness

Between 0.011 inches and 0.018 inches

Heat Treatment

T-6 solution heat treated, artifically aged

Material

Aluminum alloy 6061

Material Specification

Qq-a-225/8 temper t6 federal specification single material response

Surface Treatment

Anodize

Surface Treatment Specification

Dv-pst-2 fscm 50643 mfr ref single treatment response

Style Designator

Recessed

NSN

5310-00-762-9523

Part Number

78938

Description

Washer,recessed

CAGE

50643

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 78938 NSN 5310-00-762-9523

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: 7616108000
SITC: 69440
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum