5305-01-178-7349
Hexagon Head Cap Screw
Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.
Request for Quote
Send us a request for quote using the form below. Our team will promptly provide you with the latest pricing and availability details.
Featured Parts
Need Assistance?
Our catalog is extensive, but we understand that sometimes specific needs might not be immediately available. If you could not find the exact products you were searching for, we are here to help!
Contact us directly, and our team will assist you in finding the perfect solution for your requirements.
Contact UsCertified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- Genuine Manufacturers Parts
- 100% Product Inspection
- 7 Year Sales Record Retention
- Fast On-Time Delivery
- HAZMAT Certified
- Global Shipping
Official Item Classification
- Name
- Hexagon Head Cap Screw
- (NSN) National Stock Number
- 5305-01-178-7349
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 18257
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 05/09/1984 (42 years ago)
4.5 millimeters nominal head height, 18.0 millimeters minimum and 20.0 millimeters maximum thread length, hexagon head style, right-hand thread direction, 20.00 millimeters nominal fastener length
Specs & Compatibility
right-hand
18.0 millimeters minimum and 20.0 millimeters maximum
20.00 millimeters nominal
hexagon
4.5 millimeters nominal
10.0 millimeters nominal
high-mobility artillery rocket system (himars)
6.0 millimeters
113784 pounds per square inch
18.0 rockwell c minimum and 31.0 rockwell c maximum overall
1.0
steel property class 8.8 overall
zinc overall
m
Replacement For
| Part Number | Description | |
|---|---|---|
| 5305-01-586-4237 | No Name Available | 12/01/2019 |
Regulatory Compliance
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0018257
Related Hardware Products
| Part Number | Description |
|---|---|
| 10503805 | Hexagon Head Cap Screw |
| 11503867 | Hexagon Head Cap Screw |
| 12414419-076 | Hexagon Head Cap Screw |
| 186-6034 | Hexagon Head Cap Screw |
| 19M7077 | Hexagon Head Cap Screw |
| 6430443-76M1 | Hexagon Head Cap Screw |
| 85104060200859 | Hexagon Head Cap Screw |
| BS EN ISO 4017-M6X20-8.8-A2L | Hexagon Head Cap Screw |
| D10015 | Hexagon Head Cap Screw |
| DIN933-M6X20-8.8-A2L | Hexagon Head Cap Screw |
| ISO4017-M6X20-8.8-A2L | Hexagon Head Cap Screw |