Model: MIL-S-4149-1

Welding Stud

Special Features:

Flux furnished, also with ferrule

Properties:

Thread Class

2a nut thread

Thread Direction

Right-hand nut thread

Thread Length

1.610 inches nut thread and 1.640 inches nut thread

Thread Length

1.610 inches and 1.640 inches nut thread

Unthreaded End Diameter

Between 0.382 inches and 0.392 inches

Unthreaded End Length

Between 0.500 inches and 0.520 inches

Length Excluding Fluxed Welding Tip

Between 2.094 inches and 2.156 inches

Features Provided

Heat shield

Thready Qty Per Inch (tpi)

14 nut thread

Thread Size

0.438 inches nut thread

Part Name Assigned By Controlling Agency

Stud, welding

Material

Steel

Style Designator

Welding

Thread Series Designator

Unc nut thread

Nondefinitive Specification/std Data

2 type and 1 class

NSN

5307-00-265-9156

Part Number

MIL-S-4149-1

Description

Stud,welding

CAGE

81349

A headed or headless fastener externally or internally threaded. It is intended for fastening by welding the head, unthreaded end or welding tip. If headed, the head is not designed to be self-holding, nor to be turned with a wrench or inserted driver, nor does the head have small raised projections on the top or underside to facilitate welding. See also bolt, welding.

Part MIL-S-4149-1 NSN 5307-00-265-9156

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16944

FIIG:

A051A0

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:

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: 7318155000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Studs of iron or steel, threaded