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2YJF8 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2YJF8: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.188 INCHES NOMINAL IN, inside_radius: 0.14 INCHES NOMINAL IN, outside_diameter: 0.625 INCHES NOMINAL IN, special_features: FINISH-BLACK OXIDE;STUD SIZE-0.25 INCH;WEIGHT-.02 POUNDS LBS, part_name_assigned_by_controlling_agency: WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-701-0604, 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
2YJF8
NSN: 5310-01-701-0604
FSC: 5310 — Nuts and Washers
CAGE: 0CLM1 — GRAINGER W W INC GRAINGER DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.188 INCHES NOMINAL IN
inside_radius0.14 INCHES NOMINAL IN
outside_diameter0.625 INCHES NOMINAL IN
special_featuresFINISH-BLACK OXIDE;STUD SIZE-0.25 INCH;WEIGHT-.02 POUNDS LBS
part_name_assigned_by_controlling_agencyWASHER
NSN5310-01-701-0604
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2YJF8 · 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
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
COLOR: BLACK OVERALL
•
MATERIAL: STEEL OVERALL
•
THICKNESS: 0.188 INCHES NOMINAL IN
•
INSIDE RADIUS: 0.14 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
COLORBLACK OVERALL
SPECIAL FEATURESFINISH-BLACK OXIDE;STUD SIZE-0.25 INCH;WEIGHT-.02 POUNDS LBS
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER
MATERIALSTEEL OVERALL
THICKNESS0.188 INCHES NOMINAL IN
INSIDE RADIUS0.14 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
42619Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5310PL2148772Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2YJF8?
2YJF8 is a WASHER,FLAT.
What parts can replace 2YJF8?
There are 2 known substitutes for 2YJF8: 42619, 5310PL2148772. Substitute compatibility should be verified for your specific system.
What is the NSN for 2YJF8?
2YJF8 is cataloged in the U.S. Government catalog under NSN 5310-01-701-0604. 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.