NSN 5310-01-031-8370

Flat Washer
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
010318370

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Privacy Policy    Terms & Conditions

Product Definition Definition of approved item name (AIN): "WASHER,FLAT"

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.

5310-01-031-8370 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAGR
Cross Sectional Shape
Rectangular
MRC:
AAUB
Hole Diameter
Between 0.564 inches and 0.568 inches
MRC:
ABMW
Edge Shape
Round
MRC:
ABMX
Center Hole Shape
1 round
MRC:
ABNM
Thickness
0.187 inches
MRC:
ADAV
Overall Diameter
1.375 inches
MRC:
CQFM
Hardness Rating
27.0 rockwell c or 35.0 rockwell c
MRC:
CQZT
Outside Left Corner Chamfer Angle
45.0 degrees
MRC:
CRFT
Outside Right Corner Chamfer Angle
45.0 degrees
MRC:
CRJY
Inside Left Corner Chamfer Angle
45.0 degrees
MRC:
CRTL
Criticality Code Justification
Zzzw
MRC:
CSZZ
Inside Right Corner Chamfer Angle
45.0 degrees
MRC:
HUES
Color
Black
MRC:
MATT
Material
Steel comp 4140
MRC:
SFTT
Surface Treatment
Oxide film
MRC:
ZZZW
Departure From Cited Document
As differentiated by special quality control testing for mk 48 torpedo

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number
Cage
RNCC
RNVC
DAC
RNAAC
Status
MSDS
SADC
Part Number:
2508735
Cage Code:
10001
RNCC:
3
RNVC:
9
DAC:
1
RNAAC:
KZ
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13393
FIIG:
A022B0
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Special material and handling

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
ADPE:
CRITL:
Y
Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) U

Precious metal content is unknown

Criticality Y

The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restrictions or application.

Import and Export

Schedule B
NAIC
End Use
SITC
USDA
HITECH
Schedule B:
7318220000
NAICS:
332722
End Use Class:
12300
SITC:
69422
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 7318220000

Washers Other Than Lock Washers, Iron Or Steel

End Use Code 12300

Finished Metal Shapes

Standard Intl. Trade Class (SITC) 69422

Screws, Bolts, Nuts, Screw Hooks, Rivets, Washers and Similar Articles, Not Threaded, Of Iron Or Steel

National motor freight and handling

NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
194160
NMF Description:
Iron Or Steel Washer Or Gaskets
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ADC:
A
ACC:
B

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 713

Metal hardware.

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)