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Technical Data Sheet
PartsTable / COMPONENT / NAS561C8-30
NAS561C8-30 ✓ 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 PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.250 INCHES NOMINAL IN, material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL, overall_length: 1.875 INCHES NOMINAL IN, hardness_rating: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SLOTTED, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-058-9813, 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
NAS561C8-30
NSN: 5315-00-058-9813
FSC: 5315
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
diameter0.250 INCHES NOMINAL IN
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL
overall_length1.875 INCHES NOMINAL IN
hardness_rating43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentPASSIVATE OVERALL
material_thickness0.048 INCHES NOMINAL IN
nondefinitive_spec/std_data1 TYPE AND B COMPOSITION
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-058-9813
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS561C8-30 · 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
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND B COMPOSITION
•
DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.048 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.875 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND B COMPOSITION
DIAMETER0.250 INCHES NOMINAL IN
MATERIAL THICKNESS0.048 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL
STYLE DESIGNATORSLOTTED
HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
79-014-078-0187Interchangeable
interchangeable cross-reference
interchangeable
MILP10971TYPE1C0MP0SITI0NBInterchangeable
interchangeable cross-reference
interchangeable
MIL-P-10971Interchangeable
interchangeable cross-reference
interchangeable
BA98203-19Interchangeable
interchangeable cross-reference
interchangeable
NASM10971CLASSBInterchangeable
interchangeable cross-reference
interchangeable
22-15049A48Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS561C8-30?
NAS561C8-30 is a PIN,SPRING.
What parts can replace NAS561C8-30?
There are 18 known substitutes for NAS561C8-30: 79-014-078-0187, MILP10971TYPE1C0MP0SITI0NB, MIL-P-10971 and 15 more. Substitute compatibility should be verified for your specific system.
Is NAS561C8-30 still available?
NAS561C8-30 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