Model: 91211A127

Hexagon Head Cap Screw

Special Features:

Item has a yellow-chromate finish

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.750 inches and 1.000 inches

Fastener Length

2.500 inches

Head Style

Hexagon

Head Height

0.156 inches

Width Between Flats

0.438 inches

Locking Feature

Patch threads

End Application

Apache attack helicopter

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

150000 pounds per square inch

Part Name Assigned By Controlling Agency

Screw, cap, hex head, grade 8 w/locking patch

Material

Steel fastener

Material Specification

Sae j429, gr 8 assn standard single material response fastener

Surface Treatment

Chromate zinc fastener

Supplementary Features

Patch can withstand temps -65 to 250 degrees f

Thread Series Designator

Unc

NSN

5305-01-624-7962

Part Number

91211A127

Description

Screw,cap,hexagon Head

CAGE

39428

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Part 91211A127 NSN 5305-01-624-7962

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

18257

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:

096640

UFC:

50600

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Equipment for Aircraft

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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