Model: 641-8178-001

Knurled Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Counterbore Diameter
0.625 inches nut
Nut Style
Knurled
Nut Diameter
Between 0.748 inches and 0.752 inches
Nut Thickness
0.470 inches
Nut Counterbore Depth
0.190 inches nut
Drilled Hole Diameter
0.062 inches
Hole Type And Quantity
2 drilled
Thread Series
Unf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Hole Configuration Style
Configuration f
Countersink Angle
80.0 degrees both ends and 100.0 degrees both ends
Material
Steel comp 303
Material Specification
Astm a582 cond a assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
580-0025-000 fscm 13499 mfr ref single treatment response
NSN
5310-01-089-6041
Part Number
641-8178-001
Description
Nut,plain,knurled
CAGE
13499

A nut, round in shape, having all or part of its outer surface knurled. It may have provisions for external wrenching. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).

Part 641-8178-001 NSN 5310-01-089-6041

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15886
FIIG:
A021A0
Concept No.:
1
App. Key:
AU
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:
SX
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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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