Model: B312001109-1

Convex Washer

Properties:

Hole Diameter

Between 0.406 inches and 0.411 inches

Material Thickness

Between 0.116 inches and 0.119 inches

Surface Finish

32.0 microinches bottom

Surface Finish

63.0 microinches top

Material

Steel comp 416

Material Specification

Qq-s-764 federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

B190000120, fscm 81100 mfr ref single treatment response

Style Designator

Convex

NSN

5310-00-441-9769

Part Number

B312001109-1

Description

Washer,convex

CAGE

88818

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is raised to form a curved or spherical contour. See also washer (1), concave. Excludes bearing, washer thrust.

Part B312001109-1 NSN 5310-00-441-9769

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15931

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:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318220000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Washers other than lock washers, iron or steel