5305-01-421-7550
Find complete technical information, availability, and procurement data for: 5305-01-421-7550
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A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).
flat countersunk head style, 1.513 inches minimum and 1.543 inches maximum fastener length, 3a thread class, 0.403 inches nominal thread length, 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
- 0.403 inches nominal
- Fastener Length
- 1.513 inches minimum and 1.543 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.464 inches minimum and 0.506 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum and 0.086 inches maximum threads
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.115 inches minimum and 1.135 inches maximum
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 180000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 0.989 inches minimum and 1.029 inches maximum threads
- Material
- steel comp 8740 overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416t11c2 fed spec single treatment response overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas1580 professional/industrial association standard
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| Part Number | Name |
|---|---|
| NAS1580A4R18D | Close Tolerance Screw |
FAQs
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When the NSN 5305-01-421-7550 was assigned to the Federal Catalog?
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