5305-00-988-1721
Find complete technical information, availability, and procurement data for: 5305-00-988-1721
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
right-hand thread direction, 2a thread class, 0.275 inches minimum and 0.375 inches maximum thread length, 0.375 inches nominal fastener length, pan 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
- 0.275 inches minimum and 0.375 inches maximum
- Fastener Length
- 0.375 inches nominal
- Head Style
- pan
- Head Diameter
- 0.473 inches minimum and 0.492 inches maximum
- Head Height
- 0.162 inches minimum and 0.175 inches maximum
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 55000 pounds per square inch
- Screw Material
- steel comp 1010 or steel comp 1011 or steel comp 1013
- Screw Material Document And Classification
- 66 fed std all material responses
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 3 fed spec single treatment response
- 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 5305-00-404-2015 | No Name Available | 06/01/1976 |
| 5305-00-685-7899 | No Name Available | 06/08/1967 |
| 5315-00-933-3816 | No Name Available | 11/29/1967 |
| 5305-00-994-7425 | No Name Available | 07/18/1967 |
| 5305-01-014-7469 | No Name Available | 03/01/1978 |
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 |
|---|---|
| 19104ADX | Machine Screw |
| 450A264H01 | Machine Screw |
| 5305009881721 | Machine Screw |
| 5305PL0652607 | Machine Screw |
| MS35206-277 | Machine Screw |
| XX003-2345 | Machine Screw |
FAQs
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Does NSN 5305-00-988-1721 require demilitarization?
Does NSN 5305-00-988-1721 contain precious materials?
Does NSN 5305-00-988-1721 contain hazardous materials?
When the NSN 5305-00-988-1721 was assigned to the Federal Catalog?
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