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AA239PC20 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AA239PC20: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, hole_diameter: 0.656 INCHES NOMINAL IN, outside_diameter: 2.125 INCHES NOMINAL IN, material_thickness: 0.031 INCHES NOMINAL IN, internal_prebent_key_width: 0.156 INCHES NOMINAL IN, external_straight_key_width: 0.156 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-334-0447, 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
AA239PC20
NSN: 5310-00-334-0447
FSC: 5310 — Nuts and Washers
CAGE: 42280 — GARDNER DENVER NASH LLC DBA GARDNER DENVER ENGINEERED PRODUCTS GROUP DIV GARDNER DENVER NASH (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.656 INCHES NOMINAL IN
outside_diameter2.125 INCHES NOMINAL IN
material_thickness0.031 INCHES NOMINAL IN
internal_prebent_key_width0.156 INCHES NOMINAL IN
external_straight_key_width0.156 INCHES NOMINAL IN
internal_prebent_key_length0.094 INCHES NOMINAL IN
distance_from_centerline_to_inside_of_prebent_key0.656 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
NSN5310-00-334-0447
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AA239PC20 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.656 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY WIDTH: 0.156 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.125 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.156 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY LENGTH: 0.094 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.656 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.656 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
INTERNAL PREBENT KEY WIDTH0.156 INCHES NOMINAL IN
OUTSIDE DIAMETER2.125 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.156 INCHES NOMINAL IN
INTERNAL PREBENT KEY LENGTH0.094 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.656 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
K-0596-VHReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
K596VHReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AA239PC20?
AA239PC20 is a WASHER,KEY.
What parts can replace AA239PC20?
There are 2 known substitutes for AA239PC20: K-0596-VH, K596VH. Substitute compatibility should be verified for your specific system.
What is the NSN for AA239PC20?
AA239PC20 is cataloged in the U.S. Government catalog under NSN 5310-00-334-0447. 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.