Model: 641769

Hexagon Plain Nut

Special Features:

Grooved 0.031 inches wide by 0.031 inches deep midway on head around edges of hex

Properties:

Thread Pitch Diameters
+0.3479/+0.3512 inches
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.318 inches and 0.338 inches
Width Across Flats
Between 0.5510 inches and 0.5625 inches
Thread Series
Unf
Features Provided
Casehardened
Thready Qty Per Inch (tpi)
24
Hardness Rating
Between 30.0 rockwell c and 37.0 rockwell c
Thread Size
0.375 inches
Bearing Surface Type
Washer faced
Material
Steel comp 1137
Material Specification
Mil-s-866 military specification single material response
NSN
5310-00-220-6761
Part Number
641769
Description
Nut,plain,hexagon
CAGE
34623

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 641769 NSN 5310-00-220-6761

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01857
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
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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