Model: T4M284-8C

Recessed Washer

Properties:

Hole Diameter

Between 0.504 inches and 0.515 inches

Outside Diameter

0.875 inches

Recess Diameter

Between 0.604 inches and 0.620 inches

Material Thickness

0.078 inches

Min. Tensile Strength (psi)

125000 pounds per square inch

Recess Angle

90.0 degrees

Material

Steel comp 1330 or steel comp 4130

Material

Steel comp 1330 or steel comp 4130

Material Specification

66 federal standard all material responses

Surface Treatment

Cadmium

Surface Treatment Specification

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

Style Designator

15 recessed

Style Designator

Recessed

NSN

5310-00-149-9116

Part Number

T4M284-8C

Description

Washer,recessed

CAGE

59570

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 T4M284-8C NSN 5310-00-149-9116

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:

0.4000lbs

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 5310-00-149-9116 is a component of

Close In Weapon System (ciws-phalanx)
B-1 Aircraft Support Equipment
Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
B-52h) Aircraft Tf33-p-3/5/9 (c/ec-135 Engine
Tf34-ge-100 (a-10) Aircraft Engine
Hh-53b) T64-ge-3/7 (h-53b/c/h Aircraft Engine
C-2a (reprocured) Aircraft
Mh-53e Helicopter
Air Force Osprey V-22a Aircraft
Ch 47 (rotary Wing Aircraft)
011662051
Engine And Containe
010883669
Cargo-transport Helicopter
010883669
Cargo-transport Helicopter
011684260
Attack Helicopter
005049112
Attack Helicopter
005049112
Attack Helicopter
007254013
Wing Landing Flap
011069519
Attack Helicopter
005051184
Retractable Landing Gear
011069519
Attack Helicopter
011069519
Attack Helicopter
011069519
Attack Helicopter
011684259
Attack Helicopter
011491353
Diesel Engine
011922478
Attack Helicopter
001245387
Engine With Contain

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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