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Technical Data Sheet
PartsTable / COMPONENT / 12Z22PC249
12Z22PC249 ✓ 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: 0.190 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.337 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-262-3519, 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
12Z22PC249
NSN: 5310-00-262-3519
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.190 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter0.337 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness0.047 INCHES NOMINAL IN
nondefinitive_spec/std_dataA CLASS AND 2 STYLE
material_document_and_classification-FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification-QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-262-3519
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12Z22PC249 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: -QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 2 STYLE
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
HOLE DIAMETER: 0.190 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.047 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.337 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION-QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATAA CLASS AND 2 STYLE
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
MATERIAL THICKNESS0.047 INCHES NOMINAL IN
OUTSIDE DIAMETER0.337 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION-FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
14248Interchangeable
interchangeable cross-reference
interchangeable
22286Interchangeable
interchangeable cross-reference
interchangeable
SC-B-34582Interchangeable
interchangeable cross-reference
interchangeable
C54663Interchangeable
interchangeable cross-reference
interchangeable
54663Interchangeable
interchangeable cross-reference
interchangeable
316321Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12Z22PC249?
12Z22PC249 is a WASHER,LOCK.
What parts can replace 12Z22PC249?
There are 7 known substitutes for 12Z22PC249: 14248, 22286, SC-B-34582 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12Z22PC249?
12Z22PC249 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-262-3519. 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