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158255PC58 — Technical Data Sheet

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— · 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 hole_diameter: 1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, outside_diameter: 1.687 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.250 INCHES NOMINAL IN, nondefinitive_spec/std_data: C CLASS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-00-262-3570, 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
158255PC58
NSN: 5310-00-262-3570
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
hole_diameter1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
outside_diameter1.687 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.250 INCHES NOMINAL IN
nondefinitive_spec/std_dataC CLASS
departure_from_cited_designatorAS MODIFIED BY DIM.
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-262-3570
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 158255PC58 · 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: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
HOLE DIAMETER: 1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY DIM.
•
MATERIAL THICKNESS: 0.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.687 INCHES NOMINAL IN
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
•
NONDEFINITIVE SPEC/STD DATA: C CLASS
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HOLE DIAMETER1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY DIM.
MATERIAL THICKNESS0.250 INCHES NOMINAL IN
OUTSIDE DIAMETER1.687 INCHES NOMINAL IN
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
NONDEFINITIVE SPEC/STD DATAC CLASS
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 384 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
158255PC56InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
345894PC213InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FFW84CLASSCInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
345894PC203InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
158255PC46InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
345894PC204InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 158255PC58?
158255PC58 is a WASHER,LOCK.
What parts can replace 158255PC58?
There are 13 known substitutes for 158255PC58: 158255PC56, 345894PC213, FFW84CLASSC and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 158255PC58?
158255PC58 is cataloged in the Federal Logistics Information System under NSN 5310-00-262-3570. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026