BN56M4X25 — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

BN56M4X25: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 2.8 MILLIMETERS NOMINAL MM, thread_length: 23.6 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM, screw_material: STEEL PROPERTY CLASS 8.8, fastener_length: 25.0 MILLIMETERS NOMINAL MM, hardness_rating: 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-265-0484, 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

BN56M4X25

NSN: 5305-01-265-0484
FSC: 5305 — Screws
CAGE: 1CJ86 — BOSSARD INTL INC (USA)

SPECIFICATIONS

head_style	HEXAGON
head_height	2.8 MILLIMETERS NOMINAL MM
thread_length	23.6 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM
screw_material	STEEL PROPERTY CLASS 8.8
fastener_length	25.0 MILLIMETERS NOMINAL MM
hardness_rating	18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
thread_direction	RIGHT-HAND
width_between_flats	7.0 MILLIMETERS NOMINAL MM
nominal_thread_diameter	4.0 MILLIMETERS MM
screw_surface_treatment	CADMIUM
minimum_tensile_strength	113784 POUNDS PER SQUARE INCH LBS
thread_series_designator	M
NSN	5305-01-265-0484

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 2.8 MILLIMETERS NOMINAL MM

•

EXTERNAL THREAD TOLERANCE CLASS: 6G G

•

SCREW SURFACE TREATMENT: CADMIUM

•

FASTENER LENGTH: 25.0 MILLIMETERS NOMINAL MM

•

THREAD PITCH IN MILLIMETERS: 0.7

•

THREAD LENGTH: 23.6 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM

•

HARDNESS RATING: 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM

•

NOMINAL THREAD DIAMETER: 4.0 MILLIMETERS MM

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	2.8 MILLIMETERS NOMINAL MM
EXTERNAL THREAD TOLERANCE CLASS	6G G
SCREW SURFACE TREATMENT	CADMIUM
FASTENER LENGTH	25.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS	0.7
THREAD LENGTH	23.6 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM MM
HARDNESS RATING	18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
NOMINAL THREAD DIAMETER	4.0 MILLIMETERS MM
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 2

DIN933M4X25-STL 8.8-B3BReference document

Same NSN cross-reference

Reference document — Secondary reference

10013266Reference 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 BN56M4X25?

BN56M4X25 is a SCREW,MACHINE.

What parts can replace BN56M4X25?

There are 2 known substitutes for BN56M4X25: DIN933M4X25-STL 8.8-B3B, 10013266. Substitute compatibility should be verified for your specific system.

What is the NSN for BN56M4X25?

BN56M4X25 is cataloged in the U.S. Government catalog under NSN 5305-01-265-0484. This indicates validated use in U.S. government and defense supply chains.

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