Model: 771-154

Flat Washer

Special Features:

Weapon system essential

Properties:

Cross Sectional Shape

Rectangular

Hole Diameter

Between 0.805 inches and 0.842 inches

Edge Shape

Round

Center Hole Shape

1 round

Thickness

Between 0.108 inches and 0.160 inches

Overall Diameter

Between 1.462 inches and 1.499 inches

End Application

W/s: fire pumps; vehicle, aircraft refueler r-14; shipboard material handling equipment (mhe); airborne mobile dir air spt ctl (2id), (02mjul83)(an/uyq-3a); communications terminal, satellite an/gsc-3 (v)1; support equipment, b-1 aircraft; elevators, aircraft; torpedo, mk 48; stream (std.Tensioned replensihment at sea method); nsn 4210-01-486-1035 tfft (tactical fire fighting truck); 2320-01-097-0248, 2320-01-097-0249, 2320-01-100-7672, 2320-01-097-0260, 2320-01-195-7641 hemtt (heavy expanded mobility tactical trucks) ; 3990-01-444-6174 bitum distributor ; 3990-01-444-5196 cement mixer; and mrap buffalo mk2a2

Criticality Code Justification

Feat

Material

Steel

Material Specification

66 federal standard single material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification single treatment response

Nondefinitive Specification/std Data

A type and 1 grade and a class

NSN

5310-00-809-8533

Part Number

771-154

Description

Washer,flat

CAGE

90031

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 771-154 NSN 5310-00-809-8533

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:

4.0000lbs

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