6540-70-603-2103 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

6540-70-603-2103: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, head_style: HEXAGON, grip_length: 0.438 INCHES NOMINAL IN, head_height: 0.250 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-419-3293, 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

6540-70-603-2103

NSN: 5306-00-419-3293
FSC: 5306 — Bolts
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)

SPECIFICATIONS

material	STEEL COMP 630 OVERALL
head_style	HEXAGON
grip_length	0.438 INCHES NOMINAL IN
head_height	0.250 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
thread_length	0.822 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length	1.260 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_between_flats	0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
NSN	5306-00-419-3293

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES GRIP

•

HEAD HEIGHT: 0.250 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.260 INCHES NOMINAL IN

•

THREAD LENGTH: 0.822 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.500 INCHES IN

•

HEAD STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT	0.250 INCHES NOMINAL IN
FASTENER LENGTH	1.260 INCHES NOMINAL IN
THREAD LENGTH	0.822 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5643 17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.438 INCHES NOMINAL 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

65407-06032-101Same 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 6540-70-603-2103?

6540-70-603-2103 is a BOLT,CLOSE TOLERANCE.

What parts can replace 6540-70-603-2103?

There is 1 known substitute for 6540-70-603-2103: 65407-06032-101. Substitute compatibility should be verified for your specific system.

What is the NSN for 6540-70-603-2103?

6540-70-603-2103 is cataloged in the U.S. Government catalog under NSN 5306-00-419-3293. This indicates validated use in U.S. government and defense supply chains.

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6540-70-603-2103 — BOLT,CLOSE TOLERANCE

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