4996B
View detailed technical data, stock status, and sourcing information for: 4996B
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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, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
0.375 inches minimum thread length, 2a thread class, fillister extended washer head style, right-hand thread direction, 0.495 inches minimum and 0.505 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
- 0.375 inches minimum
- Fastener Length
- 0.495 inches minimum and 0.505 inches maximum
- Head Style
- fillister extended washer
- Head Diameter
- 0.215 inches minimum and 0.221 inches maximum
- Head Height
- 0.271 inches minimum and 0.291 inches maximum
- Extended Washer Diameter
- 0.240 inches minimum and 0.260 inches maximum
- Extended Washer Thickness
- 0.025 inches minimum and 0.030 inches maximum
- Hole Diameter
- 0.060 inches nominal
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.164 inches
- Hole Quantity
- 2
- Thread Quantity Per Inch
- 32
- Screw Material
- steel
- Screw Material Document And Classification
- qq-s-637 fed spec single material response
- Screw Surface Treatment
- cadmium
- Screw Surface Treatment Document And Classification
- qq-p-416,ty 1,cl 2 fed spec single treatment response
- Head Hole Configuration Style
- round
- Thread Series Designator
- unc
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 |
|---|---|
| 4996B | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-022-7580?
Does the NSN 5305-00-022-7580 have a Schedule B code assigned?
Does NSN 5305-00-022-7580 require demilitarization?
Does NSN 5305-00-022-7580 contain precious materials?
Does NSN 5305-00-022-7580 contain hazardous materials?
When the NSN 5305-00-022-7580 was assigned to the Federal Catalog?
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