GS551C3-218
View detailed technical data, stock status, and sourcing information for: GS551C3-218
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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.
flat countersunk head style, 0.454 inches minimum and 0.484 inches maximum fastener length, right-hand thread direction, 0.279 inches minimum and 0.339 inches maximum thread 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
- 0.279 inches minimum and 0.339 inches maximum
- Fastener Length
- 0.454 inches minimum and 0.484 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.276 inches nominal
- Shoulder Diameter
- 0.105 inches minimum and 0.135 inches maximum first shoulder
- Shoulder Length
- 0.193 inches minimum and 0.195 inches maximum first shoulder
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Hardness Rating
- 33.0 rockwell c minimum and 87.0 rockwell c maximum overall
- Countersink Angle
- 100.0 degrees nominal
- Shoulder Shape
- round first shoulder
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- steel comp 4037 or steel comp 8740 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec single treatment response 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 |
|---|---|
| AIC551C3-218 | Shoulder Screw |
| B1990-01 | Shoulder Screw |
| GS551C3-218 | Shoulder Screw |
FAQs
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What is the FSCG of the NSN 5305-00-151-8663?
Does the NSN 5305-00-151-8663 have a Schedule B code assigned?
Does NSN 5305-00-151-8663 require demilitarization?
Does NSN 5305-00-151-8663 contain precious materials?
Does NSN 5305-00-151-8663 contain hazardous materials?
When the NSN 5305-00-151-8663 was assigned to the Federal Catalog?
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