Model: 6440-309 PIECE F121

Hexagon Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 1.187 inches and 1.251 inches
Width Across Flats
Between 1.938 inches and 2.000 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
7
Hardness Rating
Between 24.0 rockwell c and 32.0 rockwell c
Thread Size
1.250 inches
Criticality Code Justification
Zzzx
Bearing Surface Type
Washer faced
Material
Steel
Nondefinitive Specification/std Data
3 type and 4 grade
Departure From Cited Designator
Quality control in accordance with navships 0948-045-7010 material identification and control instruction for level 1 items
NSN
5310-01-031-2124
Part Number
6440-309 PIECE F121
Description
Nut,plain,hexagon
CAGE
43689

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 6440-309 PIECE F121 NSN 5310-01-031-2124

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:
A
ESD:
ESD:
MMAC:
CRITL:
S

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
8.5 X 5.5 X 3.5
Paclk Weight:
12.4000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
24
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093470
UFC:
48940
LTL:
70.0
LCL:
--
WCC:
713
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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