Socket Head Cap Screw NSN 5305-01-126-9277

Item Description

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.

NSN: 5305-01-126-9277

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.635 inches and 1.680 inches

Fastener Length

Between 1.985 inches and 2.030 inches

Head Style

Flat chamfer

Head Diameter

Between 0.450 inches and 0.460 inches

Head Height

Between 0.306 inches and 0.312 inches

Internal Drive Style

Hexagon

Thread Diameter

0.312 inches

Width Across Flats

Between 0.250 inches and 0.253 inches

Features Provided

Finished head

Thready Qty Per Inch (tpi)

Hardness Rating

32.0 rockwell c and 38.0 rockwell c

Special Features

High grade alloy steel; used on avco starter 1114673; lubricant finish, dry to touch, per gm4435-m, code a72; gm1131-m, type d sealer around flat under the head; 0.2712 in. Min. And 0.2752 in. Max. Pitch dia. Of threadedportion; 0.2764 in. Max. Pitch dia. After phosphate coating; head bearing surface must be free of tool marks; 0.350 in. Min. Lg unthreaded portion of fastener; ball-type internal wrenching facility; flat u.S. Standard screw point, w/ chamfer 35 deg. Min. And 40 deg. Max. To minor dia.

Material

Steel

Surface Treatment

Phosphate

Surface Treatment Specification

G-4435-m, code a72 mfr ref single treatment response

Thread Series Designator

Unc

Purchase Description Identification

16764-p30s31s1

FSC

5305 Screws

NIIN

011269277

NSN

5305011269277

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

1894794

Cage Code:

1LW55

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 7318152000
NAICS: 332722
SITC: 69421
Description: Bolts and bolts and their nuts or washers exported in the same shipment
End Use (Code 12110):
Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-01-126-9277

What are the manufacturers of nsn 5305011269277?

Remy, Inc. (1LW55)
General Motors Corp (16764)

Does this nsn 5305011269277 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5305011269277
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.

Does nsn 5305011269277 contain any precious metals?
No precious metal content.

Does nsn 5305011269277 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5305011269277?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

16282

FIIG:

A003B0

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service