4091
View detailed technical data, stock status, and sourcing information for: 4091
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An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
0.266 inches nominal nut counterbore diameter, knurled nut style, 0.500 inches nominal small end diameter, 3b thread class, right-hand thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3b
- Thread Direction
- right-hand
- Counterbore Diameter
- 0.266 inches nominal nut
- Small End Diameter
- 0.500 inches nominal
- Nut Style
- knurled
- Nut Diameter
- 0.750 inches nominal
- Nut Thickness
- 0.750 inches nominal
- Knurl Width
- 0.250 inches nominal
- Small End Length
- 0.500 inches nominal
- Nut Counterbore Depth
- 0.250 inches nominal nut
- Thread Series
- unc
- Thread Quantity Per Inch
- 20
- Nominal Thread Size
- 0.250 inches
- Material
- steel comp 303 overall
- Material Document And Classification
- qq-s-763,class 303 fed spec single material response overall
- Surface Treatment
- passivate overall
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-01-291-9012 | No Name Available | 05/01/1991 |
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 |
|---|---|
| 4091 | Knurled Plain Nut |
| 40D91 | Knurled Plain Nut |
| 9172552 | Knurled Plain Nut |
| C318009888 | Knurled Plain Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-682-5737?
Does the NSN 5310-00-682-5737 have a Schedule B code assigned?
Does NSN 5310-00-682-5737 require demilitarization?
Does NSN 5310-00-682-5737 contain precious materials?
Does NSN 5310-00-682-5737 contain hazardous materials?
When the NSN 5310-00-682-5737 was assigned to the Federal Catalog?
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Pricing
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