Model: 1900B13

Shouldered And Recessed Washer

Special Features:

None 0.125 in. Diameter hole drilled on 0.781 in. Bolt circle radius 0.168 in. Deep on flat side

Properties:

Hole Diameter

1.125 inches

Shoulder Diameter

1.313 inches

Outside Diameter

Between 1.775 inches and 1.785 inches

Recess Diameter

1.195 inches

Shoulder Height

0.094 inches

Material Thickness

0.193 inches

Recess Angle

110.0 degrees

Part Name Assigned By Controlling Agency

Navy special project

Material

Copper alloy

Style Designator

Shouldered and recessed

NSN

5310-00-113-6179

Part Number

1900B13

Description

Washer,shouldered And Recessed

CAGE

78062

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 1900B13 NSN 5310-00-113-6179

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15935

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