NAS1801-4D8

Screw, Machine

Part number: NAS1801-4D8
NSN: 5305-01-193-3855
NIIN: 01-193-3855
Item name: Screw, Machine
Manufacturer: National Aerospace Standards
CAGE code: 80205
FSC: 5305 — Screws
Unit of issue: EA
DEMIL code: A

Alternate part numbers

NAS1801-4D8 CAGE 80205

Technical characteristics

Thread Class: 3A
Thread Direction: Right-hand
Thread Length: 0.468-0.564 inches
Fastener Length: 0.500 inches nominal
Head Style: Hexagon
Head Height: 0.125-0.140 inches
Width Between Flats: 0.367-0.376 inches
Internal Drive Style: Cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Qty per Inch: 32
Min Tensile Strength: 160000 psi
Hardness Rating: 36.0-40.0 Rockwell C
Screw Material: Steel comp E4340 or 8740
Material Spec: MIL-S-5000 / MIL-S-6049 / AMS6322
Surface Treatment: Cadmium per QQ-P-416 Ty2 Cl2
Thread Series: UNJF
Spec: NAS1801

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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