403446 — HEAT SINK,ELECTRICAL-ELECTRONIC

✓ Government record, cited

— · FAN MODULE

PRODUCT OVERVIEW

403446: HEAT SINK,ELECTRICAL-ELECTRONIC.

HEAT SINK,ELECTRICAL-ELECTRONIC. Key specifications include material: STEEL RETAINER, bore_shape: STRAIGHT, bore_diameter: 0.1872 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND, inner_ring_width: 0.2192 INCHES MINIMUM AND 0.2242 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-822-9872, 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

403446

NSN: 3110-00-822-9872
NIINs: 008229872, 010339288
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)

SPECIFICATIONS

material	STEEL RETAINER
bore_shape	STRAIGHT
bore_diameter	0.1872 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
load_direction	RADIAL
surface_finish	GROUND
shield_quantity	2
inner_ring_width	0.2192 INCHES MINIMUM AND 0.2242 INCHES MAXIMUM IN
outer_ring_width	0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
special_features	PHOSPHOR BRONZE; 2.406 IN. LG; 0.594 IN. W; 0.025 IN. H IN
style_designator	NON-LOADING GROOVE, NON-SEPARABLE
internal_clearance	0.0003 INCHES MINIMUM RADIAL AND 0.0009 INCHES MAXIMUM RADIAL IN
overall_outside_diameter	0.4996 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
NSN	3110-00-822-9872

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: MACHINED

•

OUTER RING WIDTH: 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN

•

INTERNAL CLEARANCE: 0.0003 INCHES MINIMUM RADIAL AND 0.0009 INCHES MAXIMUM RADIAL IN

•

SURFACE FINISH: GROUND

•

SHIELD QUANTITY: 2

•

STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE 5627 ASSN STD SINGLE MATERIAL RESPONSE RETAINER

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	MACHINED
OUTER RING WIDTH	0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN
INTERNAL CLEARANCE	0.0003 INCHES MINIMUM RADIAL AND 0.0009 INCHES MAXIMUM RADIAL IN
SURFACE FINISH	GROUND
SHIELD QUANTITY	2
STYLE DESIGNATOR	NON-LOADING GROOVE, NON-SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATION	SAE 5627 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATION	SAE 5627 ASSN STD SINGLE MATERIAL RESPONSE SHIELD
MATERIAL DOCUMENT AND CLASSIFICATION	SAE 5630 ASSN STD SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATION	SAE 5630 ASSN STD SINGLE MATERIAL RESPONSE INNER RING

SUBSTITUTES & CROSS-REFERENCES 2

771866Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

736841Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 403446?

403446 is a HEAT SINK,ELECTRICAL-ELECTRONIC.

What parts can replace 403446?

There are 2 known substitutes for 403446: 771866, 736841. Substitute compatibility should be verified for your specific system.

What is the NSN for 403446?

403446 is cataloged in the U.S. Government catalog under NSN 3110-00-822-9872. This indicates validated use in U.S. government and defense supply chains.

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403446 — HEAT SINK,ELECTRICAL-ELECTRONIC

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