NAS4904U5

Screw, Close Tolerance

Part number

NAS4904U5

NSN

5305-01-515-4546

NIIN

01-515-4546

Item name

Screw, Close Tolerance

Manufacturer

National Aerospace Standards

CAGE code

80205

FSC

5305

Unit of issue

EA

DEMIL code

A

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Alternate part numbers

• NAS4904U5 CAGE 80205

Technical characteristics

Thread Class

3A

Thread Direction

Right-hand

Thread Length

0.370 inches nominal

Fastener Length

0.682 inches nominal

Head Style

Flat chamfer

Head Diameter

0.355 inches minimum and 0.387 inches maximum

Head Height

0.063 inches maximum

Grip Diameter

0.249 inches nominal

Internal Drive Style

Tri-wing recess

Nominal Thread Diameter

0.250 inches

Grip Length

0.312 inches nominal

Thread Quantity per Inch

28

Material

Titanium alloy uns R56400 overall

Material Document and Classification

AMS4928 assn std single material response overall

Thread Series Designator

UNJF

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