ST3M744-4D19 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ST3M744-4D19: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: SPLINE DRIVE SHEAR HEAD, grip_length: 1.188 INCHES NOMINAL IN, head_height: 0.164 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.249 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-526-7398, 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

ST3M744-4D19

NSN: 5306-01-526-7398
FSC: 5306 — Bolts
CAGE: 0ZC92 — HEARTLAND PRECISION FASTENERS INC (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	SPLINE DRIVE SHEAR HEAD
grip_length	1.188 INCHES NOMINAL IN
head_height	0.164 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.249 INCHES NOMINAL IN
thread_length	0.316 INCHES NOMINAL IN
fastener_length	1.494 INCHES MINIMUM AND 1.514 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
head_minor_diameter	0.448 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
nominal_thread_diameter	0.250 INCHES IN
NSN	5306-01-526-7398

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.164 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.494 INCHES MINIMUM AND 1.514 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.316 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: SPLINE DRIVE SHEAR HEAD

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.164 INCHES NOMINAL IN
FASTENER LENGTH	1.494 INCHES MINIMUM AND 1.514 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.316 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	SPLINE DRIVE SHEAR HEAD
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	1.188 INCHES NOMINAL IN
HEAD MINOR DIAMETER	0.448 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5306 — Bolts

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

5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017

SUBSTITUTES & CROSS-REFERENCES 1

122895-4D19Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is ST3M744-4D19?

ST3M744-4D19 is a BOLT,CLOSE TOLERANCE.

What parts can replace ST3M744-4D19?

There is 1 known substitute for ST3M744-4D19: 122895-4D19. Substitute compatibility should be verified for your specific system.

What is the NSN for ST3M744-4D19?

ST3M744-4D19 is cataloged in the U.S. Government catalog under NSN 5306-01-526-7398. This indicates validated use in U.S. government and defense supply chains.

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