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8J2028 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8J2028: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1215 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.625 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN, hardness_rating: 85.0 ROCKWELL SUPERFICIAL 15-N MINIMUM, recess_diameter: 0.685 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN, shoulder_height: 0.094 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-096-6989, 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
8J2028
NSN: 5310-01-096-6989
FSC: 5310 — Nuts and Washers
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 1215 OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter0.625 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN
hardness_rating85.0 ROCKWELL SUPERFICIAL 15-N MINIMUM
recess_diameter0.685 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
shoulder_height0.094 INCHES NOMINAL IN
outside_diameter1.392 INCHES MINIMUM AND 1.420 INCHES MAXIMUM IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter1.170 INCHES NOMINAL IN
material_thickness0.062 INCHES NOMINAL IN
material_document_and_classification1E303,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-096-6989
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8J2028 · 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
•
SHOULDER HEIGHT: 0.094 INCHES NOMINAL IN
•
HARDNESS RATING: 85.0 ROCKWELL SUPERFICIAL 15-N MINIMUM
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 1E303,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.392 INCHES MINIMUM AND 1.420 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 1.170 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.685 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.094 INCHES NOMINAL IN
HARDNESS RATING85.0 ROCKWELL SUPERFICIAL 15-N MINIMUM
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATION1E303,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.392 INCHES MINIMUM AND 1.420 INCHES MAXIMUM IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
SHOULDER DIAMETER1.170 INCHES NOMINAL IN
RECESS DIAMETER0.685 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1215 OVERALL
HOLE DIAMETER0.625 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8J2028?
8J2028 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 8J2028?
8J2028 is cataloged in the U.S. Government catalog under NSN 5310-01-096-6989. 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.