810-2178000 ITEM 112
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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.
1.234 inches minimum and 1.416 inches maximum thread length, right-hand thread direction, 3a thread class, flat countersunk head style, 1.750 inches nominal fastener length
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
- 1.234 inches minimum and 1.416 inches maximum
- Fastener Length
- 1.750 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 1.112 inches minimum and 1.188 inches maximum
- Locking Feature
- patch or pellet or strip threads
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.625 inches
- Width Across Flats
- 0.375 inches nominal
- Thread Quantity Per Inch
- 11
- Minimum Tensile Strength
- 80000 pounds per square inch
- Hardness Rating
- 37.0 rockwell c minimum and 45.0 rockwell c maximum threads
- Countersink Angle
- 82.0 degrees nominal
- Material
- nickel alloy 400 fastener
- Material
- plastic polyamide (nylon) locking feature
- Material Document And Classification
- qq-n-281 fed spec single material response fastener
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 4 type
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-01-338-3135 | No Name Available | 03/01/2000 |
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| Part Number | Name |
|---|---|
| 0.625-11UNC3AX1.750NICUSLFLKG | Socket Head Cap Screw |
| 122-6602811 PC 19 | Socket Head Cap Screw |
| 5/8-11UNC-3A X 1.750 LG NI-CU | Socket Head Cap Screw |
| 810-2178000 ITEM 112 | Socket Head Cap Screw |
| 810-2178000-1 ITEM 112 | Socket Head Cap Screw |
| 810-2178000-1 PIECE 112 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-363-1576?
Does the NSN 5305-01-363-1576 have a Schedule B code assigned?
Does NSN 5305-01-363-1576 require demilitarization?
Does NSN 5305-01-363-1576 contain precious materials?
Does NSN 5305-01-363-1576 contain hazardous materials?
When the NSN 5305-01-363-1576 was assigned to the Federal Catalog?
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