2278771 PIECE 8A — COLLAR,SHAFT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

2278771 PIECE 8A: COLLAR,SHAFT.

The COLLAR,SHAFT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 642, thickness: 1.2500 INCHES NOMINAL IN, bore_diameter: 4.2550 INCHES NOMINAL IN, outside_diameter: 5.5000 INCHES NOMINAL IN, style_designator: PLAIN ROUND, nominal_thread_size: 0.500 INCHES ALL HOLES IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-221-4331, 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

2278771 PIECE 8A

NSN: 3040-01-221-4331
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 34293 — HUNTINGTON INGALLS INCORPORATED DIV INGALLS SHIPBUILDING (USA)

SPECIFICATIONS

material	COPPER ALLOY 642
thickness	1.2500 INCHES NOMINAL IN
bore_diameter	4.2550 INCHES NOMINAL IN
outside_diameter	5.5000 INCHES NOMINAL IN
style_designator	PLAIN ROUND
nominal_thread_size	0.500 INCHES ALL HOLES IN
securing_hole_quantity	2
securing_hole_type_and_location	THREADED ALL HOLES
material_document_and_classification	QQ-C-465, ALLOY 642 FED SPEC SINGLE MATERIAL RESPONSE
screw_thread_series_designator_and_location	ALL HOLES UNIFIED NATIONAL COARSE (UNC)
angle_between_centerlines_of_securing_holes_in_deg	180.0
NSN	3040-01-221-4331

COMPONENT DIAGRAM

KEY FEATURES

•

SECURING HOLE TYPE AND LOCATION: THREADED ALL HOLES

•

STYLE DESIGNATOR: PLAIN ROUND

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-465, ALLOY 642 FED SPEC SINGLE MATERIAL RESPONSE

•

SCREW THREAD SERIES DESIGNATOR AND LOCATION: ALL HOLES UNIFIED NATIONAL COARSE (UNC)

•

OUTSIDE DIAMETER: 5.5000 INCHES NOMINAL IN

•

NOMINAL THREAD SIZE: 0.500 INCHES ALL HOLES IN

•

ANGLE BETWEEN CENTERLINES OF SECURING HOLES IN DEG: 180.0

•

SECURING HOLE QUANTITY: 2

TECHNICAL CHARACTERISTICS

SECURING HOLE TYPE AND LOCATION	THREADED ALL HOLES
STYLE DESIGNATOR	PLAIN ROUND
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-465, ALLOY 642 FED SPEC SINGLE MATERIAL RESPONSE
SCREW THREAD SERIES DESIGNATOR AND LOCATION	ALL HOLES UNIFIED NATIONAL COARSE (UNC)
OUTSIDE DIAMETER	5.5000 INCHES NOMINAL IN
NOMINAL THREAD SIZE	0.500 INCHES ALL HOLES IN
ANGLE BETWEEN CENTERLINES OF SECURING HOLES IN DEG	180.0
SECURING HOLE QUANTITY	2
BORE DIAMETER	4.2550 INCHES NOMINAL IN
MATERIAL	COPPER ALLOY 642

OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment

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

3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224

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 2278771 PIECE 8A?

2278771 PIECE 8A is a COLLAR,SHAFT.

What is the NSN for 2278771 PIECE 8A?

2278771 PIECE 8A is cataloged in the U.S. Government catalog under NSN 3040-01-221-4331. This indicates validated use in U.S. government and defense supply chains.

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2278771 PIECE 8A — COLLAR,SHAFT

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