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Technical Data Sheet
PartsTable / COMPONENT / 118517-007
118517-007 ✓ 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: COPPER ALLOY OVERALL, hole_diameter: 0.194 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN, hardness_rating: 90.0 ROCKWELL B MINIMUM, outside_diameter: 0.334 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-261-8278, 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
118517-007
NSN: 5310-00-261-8278
FSC: 5310
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.194 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
hardness_rating90.0 ROCKWELL B MINIMUM
outside_diameter0.334 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM OVERALL
material_thickness0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-261-8278
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 118517-007 · 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: COPPER ALLOY OVERALL
•
MATERIAL THICKNESS: 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
SURFACE TREATMENT: CADMIUM OVERALL
•
OUTSIDE DIAMETER: 0.334 INCHES MAXIMUM IN
•
HARDNESS RATING: 90.0 ROCKWELL B MINIMUM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HOLE DIAMETER: 0.194 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
MATERIAL THICKNESS0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
SURFACE TREATMENTCADMIUM OVERALL
OUTSIDE DIAMETER0.334 INCHES MAXIMUM IN
HARDNESS RATING90.0 ROCKWELL B MINIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE DIAMETER0.194 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
800198Interchangeable
interchangeable cross-reference
interchangeable
800501Interchangeable
interchangeable cross-reference
interchangeable
20500-20Interchangeable
interchangeable cross-reference
interchangeable
FFW84CLASSESTYLE2Interchangeable
interchangeable cross-reference
interchangeable
310008000Interchangeable
interchangeable cross-reference
interchangeable
HP799P10MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 118517-007?
118517-007 is a WASHER,LOCK.
What parts can replace 118517-007?
There are 22 known substitutes for 118517-007: 800198, 800501, 20500-20 and 19 more. Substitute compatibility should be verified for your specific system.
Is 118517-007 still available?
118517-007 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026