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301703 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

301703: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-435-9103, 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
301703
NSN: 5310-01-435-9103
NIINs: 014359103, 016701042
FSC: 5310 — Nuts and Washers
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
NSN5310-01-435-9103
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 301703 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
DS-B-90346-9Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
F-301456Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 301703?
301703 is a WASHER,LOCK.
What parts can replace 301703?
There are 2 known substitutes for 301703: DS-B-90346-9, F-301456. Substitute compatibility should be verified for your specific system.
What is the NSN for 301703?
301703 is cataloged in the U.S. Government catalog under NSN 5310-01-435-9103. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.