NAS1790-3-4X — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

NAS1790-3-4X: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_height: 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.381 INCHES MAXIMUM IN, thread_length: 0.338 INCHES NOMINAL IN, screw_material: STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-697-0537, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

NAS1790-3-4X

NSN: 5305-01-697-0537
FSC: 5305 — Screws
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)

SPECIFICATIONS

head_style	FLAT COUNTERSUNK
head_height	0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.381 INCHES MAXIMUM IN
thread_length	0.338 INCHES NOMINAL IN
screw_material	STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740
fastener_length	0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_style	HIGH-TORQUE
end_item_identification	B-52 AIRCRAFT
nominal_thread_diameter	0.1900 INCHES IN
NSN	5305-01-697-0537

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN

•

SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6382 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6415 OR 6484 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6322,6325 OR 6327 ASSN STD 3RD MATERIAL RESPONSE

•

THREAD LENGTH: 0.338 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.1900 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

SPECIFICATION/STANDARD DATA: 80205-NAS1790 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN
FASTENER LENGTH	0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6382 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6415 OR 6484 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6322,6325 OR 6327 ASSN STD 3RD MATERIAL RESPONSE
THREAD LENGTH	0.338 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.1900 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SPECIFICATION/STANDARD DATA	80205-NAS1790 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SCREW MATERIAL	STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH LBS

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is NAS1790-3-4X?

NAS1790-3-4X is a SCREW,MACHINE.

What is the NSN for NAS1790-3-4X?

NAS1790-3-4X is cataloged in the U.S. Government catalog under NSN 5305-01-697-0537. This indicates validated use in U.S. government and defense supply chains.

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