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Shoulder Screw NSN 5305-01-389-8739

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

NSN 5305-01-389-8739 NSN: 5305-01-389-8739

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.480 inches and 0.500 inches
Fastener Length
Between 0.970 inches and 1.010 inches
Head Style
Flat chamfer
Head Diameter
Between 0.543 inches and 0.562 inches
Head Height
Between 0.240 inches and 0.250 inches
Shoulder Diameter
0.371 inches first shoulder and 0.373 inches first shoulder
Shoulder Length
0.397 inches first shoulder and 0.417 inches first shoulder
Internal Drive Style
Hexagon
Thread Diameter
0.375 inches
Width Across Flats
0.188 inches
Thready Qty Per Inch (tpi)
18
Shoulder Shape
Round first shoulder
Color
Bronze or olive drab
Material
Steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740
Surface Treatment
Zinc and chromate
Surface Treatment Specification
171, 1.9.2.3 military standard single treatment response
Thread Series Designator
Uns
FSC
5305 Screws
NIIN
013898739
NSN
5305013898739

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
12387306-16
Cage Code:
19207
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 5305-01-389-8739
What are the manufacturers of nsn 5305013898739?
Does this nsn 5305013898739 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305013898739
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. it has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. the head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. no. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. a locking feature may be incorporated in the design of the head or threads. for items which are both shouldered and have an externally relieved body, use screw, externally relieved body. for items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. excludes bolt, internal wrenching and screw, cap, socket head.
Does nsn 5305013898739 contain any precious metals?
No precious metal content.
Does nsn 5305013898739 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305013898739?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
App. Key:
SL
Cond. Code:
1
Status:
A

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