Model: NAS1221-6-12L

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.554 inches and 0.604 inches

Fastener Length

Between 1.314 inches and 1.344 inches

Head Style

Flat countersunk

Head Diameter

Between 0.703 inches and 0.762 inches

Locking Feature

Patch threads

Internal Drive Style

High-torque

Thread Diameter

0.375 inches

Thready Qty Per Inch (tpi)

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Material

Steel comp 4140 or steel comp 4340 or steel comp 8740

Material Specification

Mil-s-5626 military specification 1st material response or mil-s-8844 military specification 2nd material response or ams 6414 assn standard 2nd material response or mil-s-6049 military specification 3rd material response

Surface Treatment

Cadmium or cadmium and chromate

Surface Treatment Specification

Qq-p-416 type 1 cl 3 federal specification single treatment response or qq-p-416 type 2 cl 2 federal specification single treatment response

Thread Series Designator

Unjf

Specification Data

80205-nas1221 professional/industrial association standard

NSN

5305-01-298-4832

Part Number

NAS1221-6-12L

Description

Screw,cap,socket Head

CAGE

80205

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part NAS1221-6-12L NSN 5305-01-298-4832

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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