Model: 5544138-3

Recessed Washer

Special Features:

Coated, mil-c-81751, type 1, cl 4

Properties:

Hole Diameter
Between 0.315 inches and 0.324 inches
Outside Diameter
Between 0.583 inches and 0.603 inches
Recess Diameter
Between 0.396 inches and 0.406 inches
Material Thickness
Between 0.068 inches and 0.088 inches
Min. Tensile Strength (psi)
125000 pounds per square inch
Recess Angle
Between 89.0 degrees and 91.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 1330 or steel comp 4130
Material Specification
66 federal standard all material responses
Style Designator
15 recessed
NSN
5310-01-253-3726
Part Number
5544138-3
Description
Washer,recessed
CAGE

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 5544138-3 NSN 5310-01-253-3726

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15933
FIIG:
A022B0
Concept No.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
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

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