SS128-4398597 P
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
2.000 inches nominal fastener length, flat chamfer head style, 1.889 inches minimum and 2.000 inches maximum thread length, 3a 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 1.889 inches minimum and 2.000 inches maximum
- Fastener Length
- 2.000 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.457 inches minimum and 0.469 inches maximum
- Head Height
- 0.306 inches minimum and 0.312 inches maximum
- Locking Feature
- patch or pellet or strip threads
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.312 inches
- Width Across Flats
- 0.250 inches nominal
- Thread Quantity Per Inch
- 18
- Material
- nickel alloy k-500 fastener
- Material
- plastic polyamide (nylon) locking feature
- Material Document And Classification
- qq-n-286 cla fed spec single material response fastener
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 6 type
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 |
|---|---|
| 5/16-18UNC-3A X 2.000 IN LG | Socket Head Cap Screw |
| SS128-4398597 P | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-323-4144?
Does the NSN 5305-01-323-4144 have a Schedule B code assigned?
Does NSN 5305-01-323-4144 require demilitarization?
Does NSN 5305-01-323-4144 contain precious materials?
Does NSN 5305-01-323-4144 contain hazardous materials?
When the NSN 5305-01-323-4144 was assigned to the Federal Catalog?
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Pricing
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