Model: 639AS516-4

Round Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Drive Point Depth
0.034 inches
Nut Style
Round
Nut Diameter
Between 0.407 inches and 0.413 inches
Nut Thickness
Between 0.081 inches and 0.085 inches
Drive Point Width
Between 0.061 inches and 0.077 inches
Drive Point Quantity
2
Tempurature Rating
Not rated
Thread Series
Uns
Thready Qty Per Inch (tpi)
64
Hardness Rating
Not rated
Thread Size
0.250 inches
Countersink Angle
85.0 degrees and 95.0 degrees
Material
Tungsten alloy
Material Specification
Mil-t-21014 class 3 military specification single material response
Surface Treatment
Chromium
Surface Treatment Specification
Mil-p-14538 military specification single treatment response
NSN
5310-01-139-6496
Part Number
639AS516-4
Description
Nut,plain,round
CAGE
30003

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 639AS516-4 NSN 5310-01-139-6496

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15887
FIIG:
A021A0
Concept No.:
1
App. Key:
AY
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:
AB
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
136500
UFC:
68455
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
576
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8101998000
  • SITC: 69991
  • End Use: Finished metal shapes
  • NAICS: 331491
  • USDA: 1

Freight Class: Tungsten, wrought, nesoi

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