A51B21644-15

Recessed Washer

NSN 5310-00-004-7046

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
000047046

Product Features

One bearing surface chamfered 0.125 in. By 45 deg

Product Technical Spec.

Hole Diameter:
Between 0.514 inches and 0.523 inches
Outside Diameter:
1.750 inches
Overall Height:
0.187 inches
Recess Diameter:
Between 0.604 inches and 0.620 inches
Recess Depth:
0.094 inches
Material Thickness:
0.187 inches
Hardness Rating:
Between 46.0 rockwell c and 49.0 rockwell c
Recess Angle:
90.0 degrees
Part Name Assigned By Controlling Agency:
Navy special project
Heat Treatment:
Quenched and tempered
Material:
Steel
Material Specification:
Mil-s-8949 military specification single material response
Surface Treatment:
Cadmium
Style Designator:
15 recessed
Style Designator:
Recessed
Test Data Document:
81349-mil-i-6868 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:
5310-00-004-7046
Item Name:
Washer,counter
Cage Code:
26512

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
A51B21644-15
Cage Code:
61174
RNCC:
3
RNVC:
2
RNAAC:
KE
Status:
A
MSDS:
SADC:

Part Identification

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

Part Materials

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

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Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "Counter Washer"

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.

MOE Major Organizational Entities

Entity
DSOR
User:
DEPARTMENT OF THE NAVY Dept. of the Navy
DSOR:
Import / Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Classification: Washers other than lock washers, iron or steel


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