DF502-255-20 — SHAFT,STRAIGHT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

DF502-255-20: SHAFT,STRAIGHT.

The SHAFT,STRAIGHT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, end_similarity: IDENTICAL, overall_length: 4.250 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES, first_end_style: SLOTTED AND INTERNALLY THREADED, first_end_diameter: 0.4970 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-434-5464, 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

DF502-255-20

NSN: 3040-01-434-5464
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)

SPECIFICATIONS

material	COPPER ALLOY
end_similarity	IDENTICAL
overall_length	4.250 INCHES NOMINAL IN
surface_finish	63.0 MICROINCHES
first_end_style	SLOTTED AND INTERNALLY THREADED
first_end_diameter	0.4970 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
first_end_slot_depth	0.3750 INCHES NOMINAL IN
first_end_slot_width	0.1250 INCHES NOMINAL IN
end_item_identification	W/S SEAWOLF CLASS SSN
first_end_internal_thread_length	0.250 INCHES NOMINAL IN
NSN	3040-01-434-5464

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES

•

FIRST END DIAMETER: 0.4970 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN

•

FIRST END SLOT WIDTH: 0.1250 INCHES NOMINAL IN

•

FIRST END STYLE: SLOTTED AND INTERNALLY THREADED

•

FIRST END INTERNAL THREAD LENGTH: 0.250 INCHES NOMINAL IN

•

END SIMILARITY: IDENTICAL

•

FIRST END SLOT DEPTH: 0.3750 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES
FIRST END DIAMETER	0.4970 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
FIRST END SLOT WIDTH	0.1250 INCHES NOMINAL IN
FIRST END STYLE	SLOTTED AND INTERNALLY THREADED
FIRST END INTERNAL THREAD LENGTH	0.250 INCHES NOMINAL IN
OVERALL LENGTH	4.250 INCHES NOMINAL IN
END SIMILARITY	IDENTICAL
FIRST END SLOT DEPTH	0.3750 INCHES NOMINAL IN
END ITEM IDENTIFICATION	W/S SEAWOLF CLASS SSN
MATERIAL	COPPER ALLOY

SUBSTITUTES & CROSS-REFERENCES 2

6404604Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

167-6404604-21Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is DF502-255-20?

DF502-255-20 is a SHAFT,STRAIGHT.

What parts can replace DF502-255-20?

There are 2 known substitutes for DF502-255-20: 6404604, 167-6404604-21. Substitute compatibility should be verified for your specific system.

What is the NSN for DF502-255-20?

DF502-255-20 is cataloged in the U.S. Government catalog under NSN 3040-01-434-5464. This indicates validated use in U.S. government and defense supply chains.

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