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Technical Data Sheet
131019 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, hole_diameter: 1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN, overall_diameter: 1.993 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1019, 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
131019
NSN: 5310-00-013-1019
FSC: 5310
CAGE: 15879 — GENERAL EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
hole_diameter1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN
overall_diameter1.993 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationLOGISTGICS SUPPORT VESSEL
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 1 GRADE AND A CLASS
departure_from_cited_designatorAS MODIFIED BY THE FINISH
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-013-1019
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 131019 · 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
THICKNESS: 0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLE: ROUND
MATERIAL: STEEL OVERALL
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
CENTER HOLE SHAPE STYLE: ROUND
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
HOLE DIAMETER: 1.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER2.000 INCHES NOMINAL IN
HOLE DIAMETER1.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MS27183-27Interchangeable
interchangeable cross-reference
interchangeable
131019Interchangeable
interchangeable cross-reference
interchangeable
PL-H200667D001 REV R IT NO 55Interchangeable
interchangeable cross-reference
interchangeable
8630-33-18Interchangeable
Same NIIN cross-reference
interchangeable
BEBX1T1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 131019?
131019 is a WASHER,FLAT.
What parts can replace 131019?
There are 5 known substitutes for 131019: MS27183-27, 131019, PL-H200667D001 REV R IT NO 55 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 131019?
131019 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1019. This indicates validated use in U.S. government and defense supply chains.
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