Model: AL1256-86

Flat Washer

Properties:

Cross Sectional Shape

Rectangular

Hole Diameter

Between 0.250 inches and 0.255 inches

Edge Shape

Round

Center Hole Shape

1 round

Center Hole Shape

Round

Thickness

Between 0.017 inches and 0.023 inches

Overall Diameter

Between 0.370 inches and 0.400 inches

Material

Steel

Material Specification

Qq-s-698 federal specification single material response

Specification Data

70210-s8154 manufacturers standard

NSN

5310-00-274-4579

Part Number

AL1256-86

Description

Washer,flat

CAGE

08484

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.

Part AL1256-86 NSN 5310-00-274-4579

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

13393

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:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

End Items End applications NSN 5310-00-274-4579 is a component of

Sparrow (aim-7) Air-to-air Missile
Ah-1w Advance Attack Helicopter
Landing Craft Air Cushion (lcac)
Ticonderoga Class Cg (47)
Spruance Class Dd (963)
Nimitz Class Cvn
Arleigh Burke Class Ddg
Oliver Perry Class Ffg
Wasp Class Lhd
Whidbey Island Class Lsd
012554248
Cable Shield Resistance Test Set
013162752
Fiber Optic Cable Test Set
008374869
Cen Switch Assembly
002615139
Electrical-electronic Test Equipment Plug-in Unit
010799495
Spectrum Analyzer
012926530
Electrical Cable Test Set

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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