Model: SD-31978

Hexag Single Ball Seat Plain Nut

Properties:

Thread Direction
Right-hand
Nut Style
Single ball seat, hexagon
Ball Seat Radius
0.875 inches
Nut Height
0.875 inches
End Application
Mrap - common nsn - used on 4 mrap variants and 8 other weapon systems.
Width Across Flats
Between 1.475 inches and 1.495 inches
Thready Qty Per Inch (tpi)
16
Thread Size
1.125 inches
Part Name Assigned By Controlling Agency
Nut, cap
Material
Steel
Surface Treatment
Zinc
NSN
5310-00-161-9964
Part Number
SD-31978
Description
Nut,plain,single Ball Seat,hexag
CAGE
D9182

A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.

Part SD-31978 NSN 5310-00-161-9964

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04892
FIIG:
A021A0
Concept No.:
1
App. Key:
AZ
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:
0.2000lbs
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:
Q

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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