Model: 6393680-278

Shouldered And Recessed Washer

Special Features:

Washer for midbody fairing installation

Properties:

Hole Diameter

Between 0.404 inches and 0.409 inches

Shoulder Diameter

0.722 inches

Outside Diameter

Between 1.498 inches and 1.505 inches

Overall Height

0.170 inches

Recess Diameter

0.738 inches

Shoulder Height

0.100 inches

Recess Angle

100.0 degrees

Part Name Assigned By Controlling Agency

Navy special project

Material

Titanium alloy uns r56401

Material Specification

Mil-t-9046, code ab-2, condition a military specification 1st material response or astm b265, grade 23 assn standard 2nd material response or mil-t-9047, comp 6al-4v, cond a military specification 3rd material response or astm b-348, grade 23 assn standard 4th material response

Style Designator

Shouldered and recessed

NSN

5310-01-508-1258

Part Number

6393680-278

Description

Washer,shouldered And Recessed

CAGE

D9182

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 6393680-278 NSN 5310-01-508-1258

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:

194160

UFC:

55210

LTL:

50.0

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