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PartsTable / COMPONENT / 497-03
497-03 ✓ Verified by PartsTable
Esselte · 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

Presentation binder with leather style, embossed eco-friendly PP foil, glued on both sides and welded at the edges for a smooth finish, without air bubbles and waves. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-075-5434, 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
497-03
NSN: 5310-00-075-5434
FSC: 5310
CAGE: 02708 — AGE LOGISTICS CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionMAIL 4140 STEEL; MANAGANESE PHOSPHATE COAT; HEAT TREAT TO 150-160,000 PSI ULTIMATE TENSILE STRENGTH; 3.437 IN. MAJOR DIA; 1.710 IN. MINOR DIA; 20 TEETH,0.240 IN. W,0.137 IN. LG IN
NSN5310-00-075-5434
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 497-03 · Esselte ⚠ 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: MAIL 4140 STEEL; MANAGANESE PHOSPHATE COAT; HEAT TREAT TO 150-160,000 PSI ULTIMATE TENSILE STRENGTH; 3.437 IN. MAJOR DIA; 1.710 IN. MINOR DIA; 20 TEETH,0.240 IN. W,0.137 IN. LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONMAIL 4140 STEEL; MANAGANESE PHOSPHATE COAT; HEAT TREAT TO 150-160,000 PSI ULTIMATE TENSILE STRENGTH; 3.437 IN. MAJOR DIA; 1.710 IN. MINOR DIA; 20 TEETH,0.240 IN. W,0.137 IN. LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2N6027Interchangeable
interchangeable cross-reference
interchangeable
D13T1Interchangeable
interchangeable cross-reference
interchangeable
497-03Interchangeable
interchangeable cross-reference
interchangeable
361-0006Interchangeable
interchangeable cross-reference
interchangeable
A361-6Interchangeable
interchangeable cross-reference
interchangeable
C361-0001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 497-03?
497-03 is a VALVE,REGULATING,FLUID PRESSURE manufactured by Esselte.
What parts can replace 497-03?
There are 6 known substitutes for 497-03: 2N6027, D13T1, 497-03 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 497-03?
497-03 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-075-5434. 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