HS4278-7-19 — BOLT,SHEAR

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HS4278-7-19: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON, grip_length: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN, head_height: 0.257 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-180-6863, 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

HS4278-7-19

NSN: 5306-01-180-6863
FSC: 5306 — Bolts
CAGE: 02731 — MCDONNELL DOUGLAS HELICOPTER CO INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	DOUBLE HEXAGON
grip_length	1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
head_height	0.257 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN
thread_length	0.466 INCHES NOMINAL IN
fastener_length	1.638 INCHES MINIMUM AND 1.686 INCHES MAXIMUM IN
hardness_rating	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
special_features	THREADED END CHAMFER 45 DEGREES,0.080 IN. LENGTH; 450 DEGREES F MAX APPLICATION; CROSSDRILL SHANK 0.125 IN. FROM THREADED END WITH 0.105 IN.HOLE IN
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
NSN	5306-01-180-6863

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.257 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.638 INCHES MINIMUM AND 1.686 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS672,TYPE 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.466 INCHES NOMINAL IN

•

HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS6485E ASSN STD SINGLE MATERIAL RESPONSE OR AMS6487E ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

SINGLE SHEAR STRENGTH: ERR-060

•

NOMINAL THREAD DIAMETER: 0.437 INCHES IN

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.257 INCHES NOMINAL IN
FASTENER LENGTH	1.638 INCHES MINIMUM AND 1.686 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	NAS672,TYPE 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.466 INCHES NOMINAL IN
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6485E ASSN STD SINGLE MATERIAL RESPONSE OR AMS6487E ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SINGLE SHEAR STRENGTH	ERR-060
NOMINAL THREAD DIAMETER	0.437 INCHES IN
HEAD STYLE	DOUBLE HEXAGON
THREAD DIRECTION	RIGHT-HAND

SUBSTITUTES & CROSS-REFERENCES 1

EWSB22-7-19Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 HS4278-7-19?

HS4278-7-19 is a BOLT,SHEAR.

What parts can replace HS4278-7-19?

There is 1 known substitute for HS4278-7-19: EWSB22-7-19. Substitute compatibility should be verified for your specific system.

What is the NSN for HS4278-7-19?

HS4278-7-19 is cataloged in the U.S. Government catalog under NSN 5306-01-180-6863. This indicates validated use in U.S. government and defense supply chains.

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HS4278-7-19 — BOLT,SHEAR

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