HC256-6SSB
View detailed technical data, stock status, and sourcing information for: HC256-6SSB
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Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-470-5988
Item Name Code
16282
Assigment Date
08/31/1970 (55 years ago)
0.359 inches minimum and 0.381 inches maximum fastener length, right-hand thread direction, 0.323 inches minimum and 0.381 inches maximum thread length, 3a thread class, flat chamfer 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.323 inches minimum and 0.381 inches maximum
- Fastener Length
- 0.359 inches minimum and 0.381 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.134 inches minimum and 0.140 inches maximum
- Head Height
- 0.083 inches minimum and 0.086 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.086 inches
- Width Across Flats
- 0.078 inches minimum and 0.079 inches maximum
- Thread Quantity Per Inch
- 56
- Minimum Tensile Strength
- 80000 pounds per square inch
- Hardness Rating
- 80.0 rockwell b minimum overall
- Minimum Yield Strength
- 30000 pounds per square inch
- Color
- black overall
- Material
- steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
- Material Document And Classification
- 66 fed std all material responses overall
- Surface Treatment
- oxide overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 6 type
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 |
|---|---|
| 10125323 | Socket Head Cap Screw |
| HC256-6SSB | Socket Head Cap Screw |
| MS16995-3B | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-470-5988?
The FSCG of the NSN 5305-00-470-5988 is 5305
Does the NSN 5305-00-470-5988 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-470-5988 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 5305-00-470-5988 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-470-5988 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 5305-00-470-5988 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Mon, Aug 31, 1970
Professional Distribution
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- AS9120 Quality Standards
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