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Technical Data Sheet
PartsTable / COMPONENT / TYPE 1, CMPSN C,DIA.0625X250LG
TYPE 1, CMPSN C,DIA.0625X250LG ✓ 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 TYPE 1, CMPSN C,DIA.0625X250LG is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-300-4181, 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
TYPE 1, CMPSN C,DIA.0625X250LG
NSN: 5315-01-300-4181
FSC: 5315
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberTYPE 1, CMPSN C,DIA.0625X250LG
NSN5315-01-300-4181
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: TYPE 1, CMPSN C,DIA.0625X250LG · 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: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DEPARTURE FROM CITED DOCUMENT: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
•
HARDNESS RATING: 78.3 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 81.5 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL: COPPER ALLOY OVERALL
•
DIAMETER: 0.0625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.250 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENTMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
HARDNESS RATING78.3 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 81.5 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSLOTTED
MATERIALCOPPER ALLOY OVERALL
DIAMETER0.0625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MIL-P10971EInterchangeable
interchangeable cross-reference
interchangeable
NAS1407N7M13Interchangeable
interchangeable cross-reference
interchangeable
NAS561-3-20Interchangeable
interchangeable cross-reference
interchangeable
125-0500MDPInterchangeable
interchangeable cross-reference
interchangeable
21128-00345Interchangeable
interchangeable cross-reference
interchangeable
MS51923-288Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TYPE 1, CMPSN C,DIA.0625X250LG?
TYPE 1, CMPSN C,DIA.0625X250LG is a TYPE 1, CMPSN C,DIA.0625X250LG.
What parts can replace TYPE 1, CMPSN C,DIA.0625X250LG?
There are 16 known substitutes for TYPE 1, CMPSN C,DIA.0625X250LG: MIL-P10971E, NAS1407N7M13, NAS561-3-20 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TYPE 1, CMPSN C,DIA.0625X250LG?
TYPE 1, CMPSN C,DIA.0625X250LG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-300-4181. 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