R/4-40X.312#
View detailed technical data, stock status, and sourcing information for: R/4-40X.312#
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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.
watertight head style, 2a thread class, right-hand thread direction, 0.262 inches minimum and 0.312 inches maximum thread length, 0.312 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.262 inches minimum and 0.312 inches maximum
- Fastener Length
- 0.312 inches nominal
- Head Style
- watertight
- Head Diameter
- 0.238 inches maximum
- Head Height
- 0.080 inches maximum
- 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 comp 302
- Screw Surface Treatment
- passivate
- Screw Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response
- Special Features
- 0-ring flourosilicone rubber,color blue
- Thread Series Designator
- unc
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| Part Number | Name |
|---|---|
| 117-0347-001 | Machine Screw |
| A320A628 | Machine Screw |
| NT521R0440EC5 | Machine Screw |
| R/4-40X.312# | Machine Screw |
FAQs
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What is the FSCG of the NSN 5305-01-339-3298?
Does the NSN 5305-01-339-3298 have a Schedule B code assigned?
Does NSN 5305-01-339-3298 require demilitarization?
Does NSN 5305-01-339-3298 contain precious materials?
Does NSN 5305-01-339-3298 contain hazardous materials?
When the NSN 5305-01-339-3298 was assigned to the Federal Catalog?
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