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6674 ✓ 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 RECEIVER-TRANSMITTER,RADIO is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, width: 0.500 INCHES NOMINAL IN, holder: NOT INCLUDED, length: 1.375 INCHES NOMINAL IN, end_hole: INCLUDED, material: STEEL 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 5315-00-100-3995, 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
6674
NSN: 5315-00-100-3995
FSC: 5315
CAGE: 80850 — INTERLINE BRANDS, INC. DBA J. A. SEXAUER (USA)
SPECIFICATIONS
shapeSTRAIGHT
width0.500 INCHES NOMINAL IN
holderNOT INCLUDED
length1.375 INCHES NOMINAL IN
end_holeINCLUDED
materialSTEEL OVERALL
thickness0.0040 INCHES IN
turn_quantity40 SINGLE COMPONENT SINGLE WINDING
inclosure_typeOPEN
inductance_typeFIXED
mounting_methodTERMINAL SINGLE GROUP
style_designatorPRESSURE
NSN5315-00-100-3995
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6674 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; CHROME PLATED; FITS 5/16 IN. SQUARE STEM IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; CHROME PLATED; FITS 5/16 IN. SQUARE STEM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
667-4Interchangeable
interchangeable cross-reference
interchangeable
FBM6-010Interchangeable
interchangeable cross-reference
interchangeable
599-9647-40Interchangeable
interchangeable cross-reference
interchangeable
2-541Interchangeable
interchangeable cross-reference
interchangeable
2-643Interchangeable
interchangeable cross-reference
interchangeable
37Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6674?
6674 is a RECEIVER-TRANSMITTER,RADIO.
What parts can replace 6674?
There are 14 known substitutes for 6674: 667-4, FBM6-010, 599-9647-40 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6674?
6674 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-100-3995. 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