Model: 637A

Open End Wrench

Properties:

Overall Length

10.500 inches

Large End Head Thickness

0.281 inches

Small End Head Thickness

0.281 inches

Wrenching Surface Size

1.125 inches first end

Wrenching Surface Size

1.312 inches second end

Wrenching Surface Shape

Oval both ends internal

Small End Head Angle

15.0 degrees

Large End Head Angle

15.0 degrees

Material

Steel

Surface Treatment

Enamel and lacquer

Style Designator

Thin double head

Nondefinitive Specification/std Data

17 type and 1 class

Departure From Cited Document

As modified by wrenching surface sizes

NSN

5120-00-555-0060

Part Number

637A

Description

Wrench,open End

CAGE

65814

A nonadjustable wrench having an open end wrenching feature on one or both ends. Excludes wrench, open end box; wrench, lineman's; and wrench, box and open end, combination.

Part 637A NSN 5120-00-555-0060

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

17182

FIIG:

A527Y0

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:

186620

UFC:

91810

LTL:

RATING VARIABLE

LCL:

WCC:

732

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8204110030
SITC: 69530
End Use: Photo, service industry machinery
NAICS: 332216
USDA: 1

Freight Class: Open-end, box and combination open-end and box wrenches, base metal