Model: 52578837-001A

Recessed Washer

Properties:

Hole Diameter
Between 3.031 inches and 3.036 inches
Outside Diameter
3.625 inches
Recess Diameter
Between 3.111 inches and 3.126 inches
Recess Depth
Between 0.040 inches and 0.045 inches
Material Thickness
Between 0.115 inches and 0.120 inches
Top Recess Diameter
Between 3.111 inches and 3.126 inches
Bottom Recess Angle
90.000 degrees
Top Recess Angle
90.000 degrees
Bottom Recess Diameter
Between 3.111 inches and 3.126 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Aluminum alloy 7075
Material Specification
Qq-a-200/11, temper t6 federal specification single material response or qq-a-250/12, temper t6 federal specification single material response
Material Specification
Qq-a-200/11, temper t6 federal specification single material response or qq-a-250/12, temper t6 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2, cl 1 military specification single treatment response
Style Designator
Recessed both sides
Test Data Document
81349-mil-i-6866 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
NSN
5310-00-432-3486
Part Number
52578837-001A
Description
Washer,recessed
CAGE
95048

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 52578837-001A NSN 5310-00-432-3486

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
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

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