5305-01-421-7544
Find complete technical information, availability, and procurement data for: 5305-01-421-7544
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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).
0.403 inches nominal thread length, right-hand thread direction, 1.700 inches minimum and 1.730 inches maximum fastener length, flat countersunk head style, 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
- 0.403 inches nominal
- Fastener Length
- 1.700 inches minimum and 1.730 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
- 1.302 inches minimum and 1.322 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
- 1.574 inches minimum and 1.624 inches maximum threads
- Material
- iron alloy 660 overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 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 |
|---|---|
| NAS1580C4R21D | Close Tolerance Screw |
FAQs
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When the NSN 5305-01-421-7544 was assigned to the Federal Catalog?
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