Model: MS21299C4K

Recessed Washer

Properties:

Hole Diameter

Between 0.251 inches and 0.255 inches

Outside Diameter

Between 0.481 inches and 0.491 inches

Recess Diameter

Between 0.340 inches and 0.350 inches

Material Thickness

Between 0.057 inches and 0.069 inches

End Application

1055-01-450-4243; launcher, rocket, armored vehicle mounted: multiple launch rocket system

Hardness Rating

Between 35.0 rockwell c and 42.0 rockwell c

Recess Angle

90.0 degrees

Surface Finish

125.0 microinches all surfaces

Material

Steel comp 630

Material Specification

Ams 5604, 17-4ph assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

15 recessed

Specification Data

80205-nas-21299 professional/industrial association standard

NSN

5310-01-483-0360

Part Number

MS21299C4K

Description

Washer,recessed

CAGE

80205

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 MS21299C4K NSN 5310-01-483-0360

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:

0.1000lbs

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

576

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