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ASTMF1667 ✓ 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 STAPLE is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, head_style: DUPLEX, sterilized: NO, shank_style: SMOOTH ROUND, head_diameter: 0.250 INCHES NOMINAL IN, shank_diameter: 0.148 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-4656, 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
ASTMF1667
NSN: 5315-00-010-4656
FSC: 5315
CAGE: 81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
head_styleDUPLEX
sterilizedNO
shank_styleSMOOTH ROUND
head_diameter0.250 INCHES NOMINAL IN
shank_diameter0.148 INCHES NOMINAL IN
decorative_headNO
fastener_length2.750 INCHES NOMINAL IN
surface_treatmentZINC
fabrication_methodCOLD FORMED
surface_treatment_locationOVERALL
NSN5315-00-010-4656
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ASTMF1667 · 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
•
POINT STYLE: DIAMOND
•
HEAD STYLE: FLAT
•
SHANK DIAMETER: 0.099 INCHES NOMINAL IN
•
DECORATIVE HEAD: NO
•
SHANK STYLE: SMOOTH ROUND
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
STERILIZED: NO
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
POINT STYLEDIAMOND
HEAD STYLEFLAT
SHANK DIAMETER0.099 INCHES NOMINAL IN
DECORATIVE HEADNO
SHANK STYLESMOOTH ROUND
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
STERILIZEDNO
FASTENER LENGTH1.750 INCHES NOMINAL IN
HEAD DIAMETER0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
MS90713-4Interchangeable
Same NIIN cross-reference
interchangeable
FFN105Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASTMF1667?
ASTMF1667 is a STAPLE.
What parts can replace ASTMF1667?
There are 2 known substitutes for ASTMF1667: MS90713-4, FFN105. Substitute compatibility should be verified for your specific system.
Is ASTMF1667 still available?
ASTMF1667 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