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239839 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

239839: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, hole_diameter: 0.900 INCHES NOMINAL IN, outside_diameter: 1.210 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.210 INCHES NOMINAL IN, overall_distance_including_keys: 1.480 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-510-1986, 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
239839
NSN: 5310-00-510-1986
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
hole_diameter0.900 INCHES NOMINAL IN
outside_diameter1.210 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
material_thickness0.210 INCHES NOMINAL IN
overall_distance_including_keys1.480 INCHES NOMINAL IN
material_document_and_classificationAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-510-1986
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 239839 · 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: 1.480 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.210 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.210 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 302 OVERALL
•
HOLE DIAMETER: 0.900 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS1.480 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.210 INCHES NOMINAL IN
MATERIAL THICKNESS0.210 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 302 OVERALL
HOLE DIAMETER0.900 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
284290Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 239839?
239839 is a WASHER,KEY.
What parts can replace 239839?
There is 1 known substitute for 239839: 284290. Substitute compatibility should be verified for your specific system.
What is the NSN for 239839?
239839 is cataloged in the U.S. Government catalog under NSN 5310-00-510-1986. 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.