PartsTable
Technical Data Sheet
42458-16-2 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 16.2 MILLIMETERS MINIMUM AND 17.0 MILLIMETERS MAXIMUM MM, outside_diameter: 27.4 MILLIMETERS MAXIMUM MM, special_features: M16, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 3.3 MILLIMETERS MINIMUM AND 3.7 MILLIMETERS MAXIMUM MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-551-4503, 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
42458-16-2
NSN: 5310-01-551-4503
FSC: 5310
CAGE: 05573 — BARNES GROUP INC. DBA BARNES DISTRIBUTION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter16.2 MILLIMETERS MINIMUM AND 17.0 MILLIMETERS MAXIMUM MM
outside_diameter27.4 MILLIMETERS MAXIMUM MM
special_featuresM16
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness3.3 MILLIMETERS MINIMUM AND 3.7 MILLIMETERS MAXIMUM MM
end_item_identificationMINE PROTECTED CLEARANCE VEHICLE MPCV, MK1 - 2320-01-529-2251; MRAP BUFFALO MK2A2; MRAP - COUGAR
part_name_assigned_by_controlling_agencyLOCK WASHER
NSN5310-01-551-4503
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 42458-16-2 · 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
HOLE DIAMETER: 16.2 MILLIMETERS MINIMUM AND 17.0 MILLIMETERS MAXIMUM MM
MATERIAL THICKNESS: 3.3 MILLIMETERS MINIMUM AND 3.7 MILLIMETERS MAXIMUM MM
OUTSIDE DIAMETER: 27.4 MILLIMETERS MAXIMUM MM
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER16.2 MILLIMETERS MINIMUM AND 17.0 MILLIMETERS MAXIMUM MM
SPECIAL FEATURESM16
MATERIAL THICKNESS3.3 MILLIMETERS MINIMUM AND 3.7 MILLIMETERS MAXIMUM MM
OUTSIDE DIAMETER27.4 MILLIMETERS MAXIMUM MM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCK WASHER
MATERIALSTEEL OVERALL
END ITEM IDENTIFICATIONMINE PROTECTED CLEARANCE VEHICLE MPCV, MK1 - 2320-01-529-2251; MRAP BUFFALO MK2A2; MRAP - COUGAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
65A7A66-2Interchangeable
interchangeable cross-reference
interchangeable
2N4064Interchangeable
interchangeable cross-reference
interchangeable
40256Interchangeable
interchangeable cross-reference
interchangeable
621-457-9003Interchangeable
interchangeable cross-reference
interchangeable
1800-714-1Interchangeable
interchangeable cross-reference
interchangeable
RELEASE5399Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42458-16-2?
42458-16-2 is a WASHER,LOCK.
What parts can replace 42458-16-2?
There are 11 known substitutes for 42458-16-2: 65A7A66-2, 2N4064, 40256 and 8 more. Substitute compatibility should be verified for your specific system.
Is 42458-16-2 still available?
42458-16-2 is currently cancelled.
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