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850903 ✓ 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 CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.359 INCHES NOMINAL IN, overall_diameter: 2.969 INCHES NOMINAL IN, style_designator: INSIDE CAM TYPE W/ LUGS, surface_treatment: CADMIUM OVERALL, accommodation_type: LUGS END GRIPPING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-360-8582, 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
850903
NSN: 5315-00-360-8582
FSC: 5315
CAGE: 89749 — CLARK MATERIAL HANDLING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cam_quantity2
overall_height0.359 INCHES NOMINAL IN
overall_diameter2.969 INCHES NOMINAL IN
style_designatorINSIDE CAM TYPE W/ LUGS
surface_treatmentCADMIUM OVERALL
accommodation_typeLUGS END GRIPPING
system_for_which_designedNONPRESSURIZED
filler_neck_diameter_for_which_designed2.250 INCHES NOMINAL IN
NSN5315-00-360-8582
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 850903 · 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
•
PIN HEAD DIAMETER: 0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: 6263 FSCM 70040 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
SECOND STEP LENGTH: 0.140 INCHES NOMINAL IN
•
FIRST STEP LENGTH: 1.519 INCHES NOMINAL IN
•
SECOND STEP DIAMETER: 0.177 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
PIN HEAD DIAMETER0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
HEAD STYLEFLAT
MATERIAL DOCUMENT AND CLASSIFICATION6263 FSCM 70040 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
FEATURES PROVIDEDCASEHARDENED
SECOND STEP LENGTH0.140 INCHES NOMINAL IN
FIRST STEP LENGTH1.519 INCHES NOMINAL IN
SECOND STEP DIAMETER0.177 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDER
FIRST END STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
850903Interchangeable
interchangeable cross-reference
interchangeable
43810Interchangeable
interchangeable cross-reference
interchangeable
FP234Interchangeable
interchangeable cross-reference
interchangeable
CE5Interchangeable
interchangeable cross-reference
interchangeable
1523725Interchangeable
Same NIIN cross-reference
interchangeable
1521287Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 850903?
850903 is a CAP,FILLER OPENING.
What parts can replace 850903?
There are 6 known substitutes for 850903: 850903, 43810, FP234 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 850903?
850903 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-360-8582. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026