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A39966 — SPACER,RING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A39966: SPACER,RING.

The SPACER,RING is a the manufacturer industrial component. Key specifications include hardness_rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM, inside_diameter: 2.385 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN, outside_diameter: 2.984 INCHES NOMINAL IN, overall_thickness: 0.066 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-595-5251, 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
A39966
NSN: 5365-00-595-5251
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
inside_diameter2.385 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN
outside_diameter2.984 INCHES NOMINAL IN
overall_thickness0.066 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
NSN5365-00-595-5251
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPACER,RING TITLE COMPONENT PN A39966 MFR SPACER,RING
KEY FEATURES
•
OUTSIDE DIAMETER: 2.984 INCHES NOMINAL IN
•
OVERALL THICKNESS: 0.066 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
•
INSIDE DIAMETER: 2.385 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER2.984 INCHES NOMINAL IN
OVERALL THICKNESS0.066 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER2.385 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
39966Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A39966?
A39966 is a SPACER,RING.
What parts can replace A39966?
There is 1 known substitute for A39966: 39966. Substitute compatibility should be verified for your specific system.
What is the NSN for A39966?
A39966 is cataloged in the U.S. Government catalog under NSN 5365-00-595-5251. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.