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Close Tolerance Screw NSN 5305-00-478-0349

Item Description

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

NSN 5305-00-478-0349 NSN: 5305-00-478-0349

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.313 inches and 0.363 inches
Fastener Length
Between 0.635 inches and 0.665 inches
Head Style
Fillister
Head Diameter
Between 0.221 inches and 0.226 inches
Head Height
Between 0.074 inches and 0.086 inches
Locking Feature
Patch threads or pellet threads
Grip Diameter
Between 0.1365 inches and 0.1375 inches
Internal Drive Style
Offset cruciform (torque set)
Thread Diameter
0.138 inches
Grip Length
Between 0.302 inches and 0.322 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
140000 pounds per square inch
Hardness Rating
248.0 brinell standard and 341.0 brinell standard
Surface Finish
32.0 microinches threads
Part Name Assigned By Controlling Agency
Navy special project
Material
Iron alloy 660
Material Specification
Ams 5732 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjc
Specification Data
80205-nas1181 professional/industrial association standard
FSC
5305 Screws
NIIN
004780349
NSN
5305004780349

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS1181C5
Cage Code:
80205
Status:
A
MSDS:
Part Number:
AIC1181-5
Cage Code:
06725
Status:
A
MSDS:
Part Number:
SC2219-06-5
Cage Code:
06950
Status:
A
MSDS:
Part Number:
CA1181-5
Cage Code:
93907
Status:
A
MSDS:
Part Number:
106620-5
Cage Code:
80539
Status:
A
MSDS:
Part Number:
965809-5C
Cage Code:
82577
Status:
A
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 5305-00-478-0349
What are the manufacturers of nsn 5305004780349?
Does this nsn 5305004780349 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305004780349
A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.
Does nsn 5305004780349 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305004780349 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305004780349?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
App. Key:
SS
Cond. Code:
1
Status:
A

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  •   Quality Inspected Parts
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