Model: 40021

Shoulder Screw

Special Features:

Finish: black oxide (thermal or chemical) on un-ground surfaces; threads 5g6g

Properties:

Thread Direction

Right-hand

Thread Length

Between 15.60 millimeters and 16.40 millimeters

Fastener Length

Between 31.60 millimeters and 32.65 millimeters

Head Style

Dee

Head Diameter

Between 17.73 millimeters and 18.00 millimeters

Head Height

Between 7.78 millimeters and 8.00 millimeters

Distance From Centerline To Flat

9.00 millimeters

Shoulder Diameter

12.00 millimeters

Shoulder Length

16.00 millimeters

Internal Drive Style

Hexagon

End Application

Nsn: 2320-01-529-2251; mrap buffalo mk2a2

Thread Diameter

10.0 millimeters

Width Across Flats

Between 6.02 millimeters and 6.10 millimeters

Thread Pitch In Millimeters

1.5

Part Name Assigned By Controlling Agency

Screw shoulder

Material

Steel

Thread Series Designator

NSN

5305-01-551-0894

Part Number

40021

Description

Screw,shoulder

CAGE

0Y3H3

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part 40021 NSN 5305-01-551-0894

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22846

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:

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:

096640

UFC:

50600

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8710000090
SITC: 89111
End Use: Military trucks, armored vehicles, etc.
NAICS: 336992
USDA: 1

Freight Class: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons