2-56-4-FBC — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

2-56-4-FBC: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, screw_material: COPPER ALLOY, fastener_length: 0.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, internal_drive_style: SLOT, nominal_thread_diameter: 0.086 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-017-8659, 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

2-56-4-FBC

NSN: 5305-01-017-8659
FSC: 5305 — Screws
CAGE: 70214 — GTAA LLC DBA GTAA LLC (USA)

SPECIFICATIONS

head_style	FLAT COUNTERSUNK
screw_material	COPPER ALLOY
fastener_length	0.250 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
internal_drive_style	SLOT
nominal_thread_diameter	0.086 INCHES IN
screw_surface_treatment	CADMIUM
thread_quantity_per_inch	56
thread_series_designator	UNIFIED NATIONAL COARSE (UNC)
screw_material_document_and_classification	QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE
screw_surface_treatment_document_and_classification	QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE
NSN	5305-01-017-8659

COMPONENT DIAGRAM

KEY FEATURES

•

SCREW SURFACE TREATMENT: CADMIUM

•

FASTENER LENGTH: 0.250 INCHES NOMINAL IN

•

SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE

•

NOMINAL THREAD DIAMETER: 0.086 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

SCREW MATERIAL: COPPER ALLOY

•

INTERNAL DRIVE STYLE: SLOT

TECHNICAL CHARACTERISTICS

SCREW SURFACE TREATMENT	CADMIUM
FASTENER LENGTH	0.250 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION	QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE
NOMINAL THREAD DIAMETER	0.086 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SCREW MATERIAL	COPPER ALLOY
INTERNAL DRIVE STYLE	SLOT
THREAD QUANTITY PER INCH	56
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 2-56-4-FBC?

2-56-4-FBC is a SCREW,MACHINE.

What is the NSN for 2-56-4-FBC?

2-56-4-FBC is cataloged in the U.S. Government catalog under NSN 5305-01-017-8659. This indicates validated use in U.S. government and defense supply chains.

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2-56-4-FBC — SCREW,MACHINE

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