845-5770309 ASSEMBLY 11-A
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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.
2a thread class, 0.989 inches minimum and 1.089 inches maximum thread length, right-hand thread direction, flat countersunk head style, 1.250 inches nominal 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
- 0.989 inches minimum and 1.089 inches maximum
- Fastener Length
- 1.250 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.480 inches minimum and 0.531 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.156 inches nominal
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 130000 pounds per square inch
- Minimum Yield Strength
- 90000 pounds per square inch
- Countersink Angle
- 80.0 degrees minimum and 84.0 degrees maximum
- Material
- nickel alloy k-500 overall
- Material Document And Classification
- qq-n-286,cl a fed spec single material response overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 6 type
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|---|---|
| 0.250-20UNC-2AX1.250 | Socket Head Cap Screw |
| 0.250-20UNC-2AX1.250 IN. LG NICU | Socket Head Cap Screw |
| 845-5770309 ASSEMBLY 11-A | Socket Head Cap Screw |
| M1222SN4C220NCNN | Socket Head Cap Screw |
FAQs
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What is the FSCG of the NSN 5305-01-332-3168?
Does the NSN 5305-01-332-3168 have a Schedule B code assigned?
Does NSN 5305-01-332-3168 require demilitarization?
Does NSN 5305-01-332-3168 contain precious materials?
Does NSN 5305-01-332-3168 contain hazardous materials?
When the NSN 5305-01-332-3168 was assigned to the Federal Catalog?
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