Model: 1881-129

Round Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Small End Diameter

3.620 inches

Drive Point Depth

0.312 inches

Nut Style

Round

Nut Diameter

4.380 inches

Nut Thickness

0.960 inches

Drive Point Width

0.440 inches

Undercut Thickness

0.648 inches

Drive Point Quantity

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

3.125 inches

Material

Steel

Material Specification

Mil-s-8844 cl3, 300m military specification single material response

Surface Treatment

Cadmium titanium plate

Surface Treatment

Enamel except threads and primer except threads

Surface Treatment Specification

Cpc8225, 13002 mfr ref single treatment response

Surface Treatment Specification

Mil-c-83286 color 17875 military specification 1st treatment response except threads and mil-p-23377 military specification 2nd treatment response except threads

NSN

5310-01-178-3321

Part Number

1881-129

Description

Nut,plain,round

CAGE

13002

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 1881-129 NSN 5310-01-178-3321

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15887

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:

30.0 X 18.0 X 6.0

Paclk Weight:

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:

093470

UFC:

48940

LTL:

70.0

LCL:

WCC:

573

TCC:

SHC:

ACC:

Trailers/Vehicles

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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