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Technical Data Sheet
119-1551 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER BLANK is a the manufacturer industrial component. Key specifications include overall_diameter: 1.125 INCHES NOMINAL IN, special_features: NHA IS MOUNTING GROUP, features_provided: CASEHARDENED, peripheral_shape_style: ROUND, end_item_identification: 3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80, part_name_assigned_by_controlling_agency: WASHER, HARD (1-1/8). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-547-7425, 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
119-1551
NSN: 5310-01-547-7425
FSC: 5310
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
overall_diameter1.125 INCHES NOMINAL IN
special_featuresNHA IS MOUNTING GROUP
features_providedCASEHARDENED
peripheral_shape_styleROUND
end_item_identification3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
part_name_assigned_by_controlling_agencyWASHER, HARD (1-1/8)
NSN5310-01-547-7425
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 119-1551 · 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 DIAMETER: 1.125 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLE: ROUND
FEATURES PROVIDED: CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, HARD (1-1/8)
SPECIAL FEATURESNHA IS MOUNTING GROUP
OVERALL DIAMETER1.125 INCHES NOMINAL IN
END ITEM IDENTIFICATION3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
PERIPHERAL SHAPE STYLEROUND
FEATURES PROVIDEDCASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
B3407-16Interchangeable
interchangeable cross-reference
interchangeable
3278578Interchangeable
interchangeable cross-reference
interchangeable
24817Interchangeable
interchangeable cross-reference
interchangeable
27803Interchangeable
interchangeable cross-reference
interchangeable
667-0133-000Interchangeable
interchangeable cross-reference
interchangeable
201537Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 119-1551?
119-1551 is a WASHER BLANK.
What parts can replace 119-1551?
There are 9 known substitutes for 119-1551: B3407-16, 3278578, 24817 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 119-1551?
119-1551 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-547-7425. This indicates validated use in U.S. government and defense supply chains.
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