NAS1141-2
View detailed technical data, stock status, and sourcing information for: NAS1141-2
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
right-hand thread direction, 0.278 inches nominal thread length, pan head style, 0.388 inches minimum and 0.418 inches maximum fastener length, 3a thread class
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
- 0.278 inches nominal
- Fastener Length
- 0.388 inches minimum and 0.418 inches maximum
- Head Style
- pan
- Head Diameter
- 0.258 inches minimum and 0.276 inches maximum
- Head Height
- 0.074 inches minimum and 0.086 inches maximum
- Grip Diameter
- 0.1365 inches minimum and 0.1375 inches maximum
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.138 inches
- Grip Length
- 0.115 inches minimum and 0.135 inches maximum
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Material
- steel comp 4140 or steel comp e4340 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 2 fed spec single treatment response overall
- Thread Series Designator
- unjc
- Specification/Standard Data
- 80205-nas1141 professional/industrial association standard
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 |
|---|---|
| NAS1141-2 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-304-2719?
Does the NSN 5305-01-304-2719 have a Schedule B code assigned?
Does NSN 5305-01-304-2719 require demilitarization?
Does NSN 5305-01-304-2719 contain precious materials?
Does NSN 5305-01-304-2719 contain hazardous materials?
When the NSN 5305-01-304-2719 was assigned to the Federal Catalog?
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