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Technical Data Sheet
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28419NM — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

28419NM: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-111-5471, 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
28419NM
NSN: 5310-00-111-5471
FSC: 5310 — Nuts and Washers
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part Number28419NM
NSN5310-00-111-5471
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 28419NM · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMAGNETIC PERMEABILITY SHALL BE LESS THAN 1.2 BEFORE FABRICATION AND NOT GREATER THAN 2.0 AFTER FABRICATION AS MEASURED IN A 200 OERSTED FIELD BY A PERMEABILITY INDICATOR SPECIFIED IN MILITARY SPECIFICATION MIL-I-17214
SUBSTITUTES & CROSS-REFERENCES 1
28419N0NMAGReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28419NM?
28419NM is a WASHER,LOCK.
What parts can replace 28419NM?
There is 1 known substitute for 28419NM: 28419N0NMAG. Substitute compatibility should be verified for your specific system.
What is the NSN for 28419NM?
28419NM is cataloged in the U.S. Government catalog under NSN 5310-00-111-5471. This indicates validated use in U.S. government and defense supply chains.
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