NAS1351-4-30

Screw, cap, Socket Head

Part number

NAS1351-4-30

NSN

5305-01-674-8642

NIIN

01-674-8642

Item name

Screw, cap, Socket Head

Manufacturer

National Aerospace Standards

CAGE code

80205

FSC

5305

Unit of issue

EA

DEMIL code

A

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Alternate part numbers

• NAS1351-4-30P CAGE 80205

Technical characteristics

Thread Class

3A

Thread Direction

Right-hand

Thread Length

1.000 inches nominal

Fastener Length

1.875 inches nominal

Head Style

Flat chamfer

Head Diameter

0.365 inches minimum and 0.375 inches maximum

Head Height

0.368 inches minimum and 0.375 inches maximum

Internal Drive Style

Hexagon

End Item Identification

UWA97000-15

Nominal Thread Diameter

0.250 inches

Width Across Flats

0.312 inches nominal

Thread Quantity per Inch

28

Chamfer Angle

30.0 degrees minimum and 45.0 degrees maximum

Material

Steel overall

Material Document and Classification

FF-S-86 fed spec single material response overall

Surface Treatment

Cadmium overall

Surface Treatment Document and Classification

AMS-QQ-P-416, type ii, class 2 assn std single treatment response overall

Thread Series Designator

UNRF

Specification/Standard Data

80205-NAS1351 national std/spec

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