Model: SL207088-S4

Recessed Washer

Properties:

Hole Diameter

Between 0.251 inches and 0.255 inches

Outside Diameter

Between 0.486 inches and 0.496 inches

Recess Diameter

Between 0.340 inches and 0.350 inches

Material Thickness

Between 0.057 inches and 0.069 inches

Hardness Rating

Between 39.0 rockwell c and 43.0 rockwell c

Recess Angle

90.0 degrees

Material

Steel comp 4130 or steel comp 1050

Material Specification

Mil-s-6758 military specification 1st material response or ams 5085 assn standard 2nd material response

Precious Material And Location

Outside surface silver

Precious Material

Silver

Surface Treatment

Silver

Surface Treatment Specification

Ams 2410 assn standard single treatment response

Style Designator

15 recessed

NSN

5310-01-306-2807

Part Number

SL207088-S4

Description

Washer,recessed

CAGE

16258

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 SL207088-S4 NSN 5310-01-306-2807

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:

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