0440AA04
View detailed technical data, stock status, and sourcing information for: 0440AA04
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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.
2a thread class, 0.250 inches nominal fastener length, right-hand thread direction, 0.250 inches maximum thread length, watertight 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
- 0.250 inches maximum
- Fastener Length
- 0.250 inches nominal
- Head Style
- watertight
- Head Diameter
- 0.238 inches nominal
- Head Height
- 0.080 inches nominal
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.112 inches
- Features Provided
- o ring
- Thread Quantity Per Inch
- 40
- Screw Material
- steel corrosion resisting
- Screw Surface Treatment
- passivate
- 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 5305-00-166-8035 | No Name Available | 09/01/1989 |
| 5305-00-237-8811 | No Name Available | 11/07/1973 |
| 5305-00-757-3935 | No Name Available | 03/19/1971 |
| 5305-00-869-2246 | No Name Available | 07/30/1970 |
| 5305-00-886-6672 | No Name Available | 08/25/1971 |
| 5305-00-890-9787 | No Name Available | 02/20/1970 |
| 5305-00-911-3722 | No Name Available | 06/06/1969 |
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| R4-40X1-4 | Machine Screw |
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FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-738-0624?
Does the NSN 5305-00-738-0624 have a Schedule B code assigned?
Does NSN 5305-00-738-0624 require demilitarization?
Does NSN 5305-00-738-0624 contain precious materials?
Does NSN 5305-00-738-0624 contain hazardous materials?
When the NSN 5305-00-738-0624 was assigned to the Federal Catalog?
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Pricing
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