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)

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.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

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