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F-167-211 PIECE 451

View detailed technical data, stock status, and sourcing information for: F-167-211 PIECE 451

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F-167-211 PIECE 451
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-174-9462
Item Name Code
18257
Assigment Date
01/01/1961 (65 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

1.250 inches nominal thread length, right-hand thread direction, 1.500 inches nominal fastener length, 2a thread class, hexagon head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2a
Thread Direction
right-hand
Thread Length
1.250 inches nominal
Fastener Length
1.500 inches nominal
Head Style
hexagon
Head Height
0.312 inches nominal
Width Between Flats
0.750 inches maximum
Nominal Thread Diameter
0.500 inches
Thread Quantity Per Inch
13
Minimum Tensile Strength
75000 pounds per square inch
Hardness Rating
80.0 rockwell b minimum overall
Minimum Yield Strength
55000 pounds per square inch
Part Name Assigned By Controlling Agency
bolt, machine
Material
steel overall
Material Document And Classification
astm a307,grade 2 assn std single material response overall
Surface Treatment
zinc overall
Surface Treatment Document And Classification
astm b633,ty ii assn std single treatment response overall
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5306-00-514-9618 No Name Available 09/01/2023

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
B-12-5-12 Hexagon Head Cap Screw
F-167-211 PIECE 451 Hexagon Head Cap Screw
M1222RN8C224GCNZE Hexagon Head Cap Screw
MILB857TYPE2GRADE2 Hexagon Head Cap Screw
SL-8504 PIECE 27 Hexagon Head Cap Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-00-174-9462?
The FSCG of the NSN 5305-00-174-9462 is 5305
Does the NSN 5305-00-174-9462 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-174-9462 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-00-174-9462 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-174-9462 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-00-174-9462 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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