Model: 274944

Assembled Washer Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.313 inches and 0.375 inches

Fastener Length

0.375 inches

Head Style

Fillister

Head Diameter

Between 0.250 inches and 0.270 inches

Head Height

Between 0.102 inches and 0.113 inches

Washer Quantity

Internal Drive Style

Slot

Thread Diameter

0.164 inches

Thready Qty Per Inch (tpi)

Primary Washer Outside Diameter

Between 0.243 inches and 0.257 inches

Primary Washer Style

Split helical ring

Primary Washer Material Thickness

0.031 inches

Material

Steel

Material Specification

Gm 275-m cagec 16764 mfr ref single material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 ty2 cl2 federal specification single treatment response

Thread Series Designator

Unc

NSN

5305-01-244-8867

Part Number

274944

Description

Screw,assembled Washer

CAGE

1LW55

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Part 274944 NSN 5305-01-244-8867

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06660

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

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