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Hexagon Head Cap Screw NSN 5305-01-127-0879

Item Description

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.

NSN 5305-01-127-0879 NSN: 5305-01-127-0879

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Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.869 inches and 1.000 inches
Fastener Length
Between 0.969 inches and 1.000 inches
Head Style
Hexagon
Head Height
Between 0.150 inches and 0.163 inches
Width Between Flats
Between 0.428 inches and 0.438 inches
Shank Unthreaded Hole Diameter
0.074 inches first hole and 0.082 inches first hole
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
120000 pounds per square inch
Hardness Rating
25.0 rockwell c and 34.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
0.850 inches first hole and 0.901 inches first hole
Material
Steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2 class 2 federal specification single treatment response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
2 type and 10p style and 5 grade
FSC
5305 Screws
NIIN
011270879
NSN
5305011270879

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS51105-308
Cage Code:
96906
Status:
A
MSDS:
Part Number:
FF-S-85
Cage Code:
81348
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 5305-01-127-0879
What are the manufacturers of nsn 5305011270879?
Does this nsn 5305011270879 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305011270879
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.
Does nsn 5305011270879 contain any precious metals?
No precious metal content.
Does nsn 5305011270879 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305011270879?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
18257
FIIG:
A003B0
App. Key:
SB
Cond. Code:
1
Status:
A

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