LB34-4-72 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

LB34-4-72: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: DISHED HEXAGON, grip_length: 4.500 INCHES MINIMUM AND 4.516 INCHES MAXIMUM IN, head_height: 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-186-9284, 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

LB34-4-72

NSN: 5306-01-186-9284
FSC: 5306 — Bolts
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	DISHED HEXAGON
grip_length	4.500 INCHES MINIMUM AND 4.516 INCHES MAXIMUM IN
head_height	0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN
thread_length	0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_finish	63.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length	4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN
special_features	RETAINING ELEMENT IN SHANK
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
NSN	5306-01-186-9284

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES GRIP

•

HEAD HEIGHT: 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN

•

FASTENER LENGTH: 4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN

•

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

•

THREAD LENGTH: 0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN

•

SHANK UNTHREADED HOLE DIAMETER: 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT	0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
FASTENER LENGTH	4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	DISHED HEXAGON

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

10116125Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 LB34-4-72?

LB34-4-72 is a BOLT,CLOSE TOLERANCE.

What parts can replace LB34-4-72?

There is 1 known substitute for LB34-4-72: 10116125. Substitute compatibility should be verified for your specific system.

What is the NSN for LB34-4-72?

LB34-4-72 is cataloged in the U.S. Government catalog under NSN 5306-01-186-9284. This indicates validated use in U.S. government and defense supply chains.

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