SMB640120-2
View detailed technical data, stock status, and sourcing information for: SMB640120-2
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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. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.
round head style, 2a thread class, right-hand thread direction, 0.526 inches minimum and 0.648 inches maximum thread length, 0.719 inches minimum and 0.781 inches maximum 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
- 0.526 inches minimum and 0.648 inches maximum
- Fastener Length
- 0.719 inches minimum and 0.781 inches maximum
- Head Style
- round
- Head Diameter
- 0.322 inches minimum and 0.348 inches maximum
- Head Height
- 0.165 inches minimum and 0.185 inches maximum
- Shoulder Diameter
- 0.205 inches minimum and 0.215 inches maximum first shoulder
- Shoulder Length
- 0.133 inches minimum and 0.147 inches maximum first shoulder
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Shoulder Shape
- round first shoulder
- Special Features
- shoulder medium straight knurled
- Material
- steel overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
- Thread Series Designator
- unf
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 |
|---|---|
| 5305000014873 | Shoulder Screw |
| SMB640120-2 | Shoulder Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-001-4873?
Does the NSN 5305-00-001-4873 have a Schedule B code assigned?
Does NSN 5305-00-001-4873 require demilitarization?
Does NSN 5305-00-001-4873 contain precious materials?
Does NSN 5305-00-001-4873 contain hazardous materials?
When the NSN 5305-00-001-4873 was assigned to the Federal Catalog?
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