Model: 3M1277E4D38A

Internal Wrenching Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.4250 inches

Fastener Length

Between 2.7850 inches and 2.8150 inches

Head Style

Fillister countersunk

Head Diameter

Between 0.358 inches and 0.365 inches

Head Height

0.015 inches

Internal Drive Style

Torx

End Application

F/a-18 e/f

Thread Diameter

0.2500 inches

Thready Qty Per Inch (tpi)

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Part Name Assigned By Controlling Agency

Bolt, 100-deg reduced head, gear drive recess

Material

Nickel alloy 718

Thread Series Designator

Unjf

NSN

5306-01-608-3091

Part Number

3M1277E4D38A

Description

Bolt,internal Wrenching

CAGE

76301

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 3M1277E4D38A NSN 5306-01-608-3091

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:

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7508900000
SITC: 69975
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)