Model: NAS1288-6W

Concave Washer

Properties:

Hole Diameter

Between 0.435 inches and 0.445 inches

Radius

Between 0.385 inches and 0.415 inches

Outside Diameter

0.640 inches

Recess Diameter

0.620 inches

Material Thickness

Between 0.105 inches and 0.135 inches

Hardness Rating

Between 41.0 rockwell c and 48.0 rockwell c

Material

Steel

Material Specification

Ams 6304 assn standard single material response

Surface Treatment

Nickel and zinc

Surface Treatment Specification

Ams 2417 assn standard 1st treatment response and ams 2417 assn standard 2nd treatment response

Style Designator

Concave

Specification Data

80205-nas1288 professional/industrial association standard

NSN

5310-00-975-2741

Part Number

NAS1288-6W

Description

Washer,concave

CAGE

80205

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 recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part NAS1288-6W NSN 5310-00-975-2741

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15930

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