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Technical Data Sheet
PartsTable / COMPONENT / 303860
303860 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN, hole_diameter: 0.464 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN, overall_diameter: 0.915 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-809-4085, 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
303860
NSN: 5310-00-809-4085
FSC: 5310
CAGE: H0G87 — WIBA ZEVENAAR B.V. (NLD)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
hole_diameter0.464 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
overall_diameter0.915 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationMRAP BUFFALO MK2A2; LOGISTICS SUPPORT VESSEL
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 1 GRADE AND A CLASS
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-809-4085
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 303860 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND A CLASS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
THICKNESS: 0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL OVERALL
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2; LOGISTICS SUPPORT VESSEL
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND A CLASS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THICKNESS0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER0.464 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
OVERALL DIAMETER0.915 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
103342Interchangeable
interchangeable cross-reference
interchangeable
62.51.023Interchangeable
interchangeable cross-reference
interchangeable
T113Interchangeable
interchangeable cross-reference
interchangeable
81T3123A2Interchangeable
interchangeable cross-reference
interchangeable
15129Interchangeable
interchangeable cross-reference
interchangeable
49729Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 303860?
303860 is a RETAINER,PACKING.
What parts can replace 303860?
There are 21 known substitutes for 303860: 103342, 62.51.023, T113 and 18 more. Substitute compatibility should be verified for your specific system.
Is 303860 still available?
303860 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026