Model: 20X881

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Left-hand

Thread Length

1.590 inches

Fastener Length

3.310 inches

Head Style

Flat chamfer

Head Diameter

1.310 inches

Head Height

0.310 inches

Shoulder Diameter

0.974 inches first shoulder and 0.975 inches first shoulder

Shoulder Length

1.250 inches first shoulder

Rib Major Diameter

Between 0.998 inches and 1.006 inches

Rib Length

Between 0.480 inches and 0.520 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.620 inches

Rib Minor Diameter

0.945 inches

Rib Quantity

Thread Diameter

0.938 inches

Thready Qty Per Inch (tpi)

Rib Included Angle

90.0 degrees

Shoulder Shape

Round first shoulder

Material

Steel

Thread Series Designator

NSN

5306-00-853-4523

Part Number

20X881

Description

Bolt,ribbed Shoulder

CAGE

97286

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Part 20X881 NSN 5306-00-853-4523

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16014

FIIG:

A003B0

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:

0.7000lbs

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: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment