Part Number NAS1581F4T25 Close Tolerance Screw
SKU: 5305014258826NAS1581F4T25 Close Tolerance Screw Datasheet
National aerospace standards part number NAS1581F4T25
Thread Direction:
Right-hand
Thread Length:
0.403 inches
Fastener Length:
Between 1.950 inches and 1.980 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.3504 inches and 0.3988 inches
Grip Diameter:
0.248 inches
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
1.965 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
3200 pounds per square inch
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Material Specification:
MIL-S-5626 military specification 1ST material response or MIL-S-5000 military specification 2ND material response or MIL-S-6047 military specification 3RD material response
Surface Treatment Specification:
QQ-P-416, type 2, cl 2 federal specification 1ST treatment response or QQ-P-35 federal specification 2ND treatment response
Specification Data:
80205-NAS1581 professional/industrial association standard
Manufacturer Cage:
80205
Trade Information:
- Schedule B: 7318152000
- SITC: 69421
- End Use: Iron and steel products, other
- NAICS: 332722
- USDA: 1
Bolts and bolts and their nuts or washers exported in the same shipment
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