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PYC202 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PYC202: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.958 INCHES NOMINAL IN, outside_diameter: 1.664 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.037 INCHES NOMINAL IN, external_prebent_key_width: 0.234 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-638-2880, 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
PYC202
NSN: 5310-00-638-2880
FSC: 5310 — Nuts and Washers
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.958 INCHES NOMINAL IN
outside_diameter1.664 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.037 INCHES NOMINAL IN
external_key_quantity1
external_prebent_key_width0.234 INCHES NOMINAL IN
external_prebent_key_length0.188 INCHES NOMINAL IN
distance_from_centerline_to_inside_of_prebent_key0.750 INCHES NOMINAL IN
NSN5310-00-638-2880
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PYC202 · 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: 0.750 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 1.664 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.037 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 1
•
EXTERNAL PREBENT KEY WIDTH: 0.234 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.750 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.188 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER1.664 INCHES NOMINAL IN
MATERIAL THICKNESS0.037 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY1
EXTERNAL PREBENT KEY WIDTH0.234 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.958 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
851117Reference document
Same NSN cross-reference
Reference document — Secondary reference
5687Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
109214Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PYC202?
PYC202 is a WASHER,KEY.
What parts can replace PYC202?
There are 3 known substitutes for PYC202: 851117, 5687, 109214. Substitute compatibility should be verified for your specific system.
What is the NSN for PYC202?
PYC202 is cataloged in the U.S. Government catalog under NSN 5310-00-638-2880. 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.