MB250-103 — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MB250-103: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, head_style: HEXAGON EXTENDED WASHER, grip_length: 6.000 INCHES NOMINAL IN, head_height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-440-5322, 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

MB250-103

NSN: 5306-01-440-5322
FSC: 5306 — Bolts
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)

SPECIFICATIONS

material	TITANIUM ALLOY OVERALL
head_style	HEXAGON EXTENDED WASHER
grip_length	6.000 INCHES NOMINAL IN
head_height	0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length	0.425 INCHES NOMINAL IN
fastener_length	6.425 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
width_between_flats	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
end_item_identification	F/A-18 HORNET
nominal_thread_diameter	0.250 INCHES IN
NSN	5306-01-440-5322

COMPONENT DIAGRAM

KEY FEATURES

•

EXTENDED WASHER THICKNESS: 0.020 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN

•

FASTENER LENGTH: 6.425 INCHES NOMINAL IN

•

EXTENDED WASHER DIAMETER: 0.398 INCHES MINIMUM IN

•

THREAD LENGTH: 0.425 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: NAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: HEXAGON EXTENDED WASHER

TECHNICAL CHARACTERISTICS

EXTENDED WASHER THICKNESS	0.020 INCHES NOMINAL IN
HEAD HEIGHT	0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
FASTENER LENGTH	6.425 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER	0.398 INCHES MINIMUM IN
THREAD LENGTH	0.425 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	NAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	HEXAGON EXTENDED WASHER
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	6.000 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 3

74B320086-103Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

10163819Reference document

Same NSN cross-reference

Reference document — Informative reference only

AIC746-103Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 MB250-103?

MB250-103 is a BOLT,CLOSE TOLERANCE.

What parts can replace MB250-103?

There are 3 known substitutes for MB250-103: 74B320086-103, 10163819, AIC746-103. Substitute compatibility should be verified for your specific system.

What is the NSN for MB250-103?

MB250-103 is cataloged in the U.S. Government catalog under NSN 5306-01-440-5322. This indicates validated use in U.S. government and defense supply chains.

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