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139950 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

139950: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.562 INCHES NOMINAL IN, external_prebent_key_width: 0.500 INCHES NOMINAL IN, overall_distance_including_keys: 1.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-062-9566, 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
139950
NSN: 5310-00-062-9566
NIINs: 000629566, 002830373, 013939011
FSC: 5310 — Nuts and Washers
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.562 INCHES NOMINAL IN
external_prebent_key_width0.500 INCHES NOMINAL IN
overall_distance_including_keys1.438 INCHES NOMINAL IN
NSN5310-00-062-9566
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 139950 · 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
•
OVERALL DISTANCE INCLUDING KEYS: 1.438 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS1.438 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.562 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
10395030Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 139950?
139950 is a WASHER,KEY.
What parts can replace 139950?
There is 1 known substitute for 139950: 10395030. Substitute compatibility should be verified for your specific system.
What is the NSN for 139950?
139950 is cataloged in the U.S. Government catalog under NSN 5310-00-062-9566. 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.