Model: 21376 FIND 23

Internal Wrenching Bolt

Special Features:

Bolt is altered from ms20008 (nasm20004 through 20024) ; bolt has drilled head and a longer thread length than is called out in the nas standard

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

1.250 inches

Fastener Length

5.1875 inches

Head Style

Bevel-conical

Head Diameter

Between 0.818 inches and 0.828 inches

Head Height

0.500 inches

Internal Drive Style

Hexagon

End Application

Valve assembly

Thread Diameter

0.500 inches

Width Across Flats

Between 0.3755 inches and 0.3785 inches

Thready Qty Per Inch (tpi)

Hardness Rating

34.0 rockwell c and 40.0 rockwell c

Surface Finish

125.0 microinches

Part Name Assigned By Controlling Agency

Bolt, internal wrenching

Material

Steel

Material Specification

Uns g43400, 43406, 41400, 87400 or 87350 national std/spec single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type ii, class 2 federal specification single treatment response

Thread Series Designator

Unjf

Specification Data

80205-nas-20004 through 20024 professional/industrial association standard

NSN

5306-01-616-3855

Part Number

21376 FIND 23

Description

Bolt,internal Wrenching

CAGE

78062

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 21376 FIND 23 NSN 5306-01-616-3855

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06666

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:

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