NAS1580A4T8X

Screw, Close Tolerance

Part number: NAS1580A4T8X
NSN: 5305-01-308-9975
NIIN: 01-308-9975
Item name: Screw, Close Tolerance
Manufacturer: National Aerospace Standards
CAGE code: 80205
FSC: 5305 — Screws
Unit of issue: EA
DEMIL code: A

Alternate part numbers

NAS1580A4T8X CAGE 80205

Technical characteristics

Thread Class: 3A
Thread Direction: Right-hand
Thread Length: 0.403 in nominal
Fastener Length: 0.888 in min / 0.918 in max
Head Style: Flat countersunk
Head Diameter: 0.5066 in nominal
Grip Diameter: 0.2485 in min / 0.2490 in max
Internal Drive Style: Offset cruciform (torque set)
Nominal Thread Diameter: 0.250 in (1/4)
Grip Length: 0.490 in min / 0.510 in max
Threads per Inch: 28
Min Tensile Strength: 160,000 PSI
Countersink Angle: 99-101 degrees
Material: Steel comp 4140
Surface Treatment: Cadmium per QQ-P-416 ty II cl 2
Thread Series: UNJF
Standard: NAS1580

Catalogue data is compiled from public DLA/FLIS sources and is provided for identification. Availability, condition and certification are confirmed on quotation. OmniSynk Distribution Services is a stocking distributor.

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