PartsTable
Technical Data Sheet
C539 ✓ 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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include housing: NOT PROVIDED, material: STEEL COMP 416, head_type: SPEAR POINT, nut_style: SINGLE BALL SEAT, HEXAGON, thickness: 0.1500 INCHES NOMINAL IN, body_width: 2.188 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-264-0542, 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
C539
NSN: 5310-00-264-0542
FSC: 5310
CAGE: 92867 — ORSCHELN PRODUCTS LLC (USA)
SPECIFICATIONS
housingNOT PROVIDED
materialSTEEL COMP 416
head_typeSPEAR POINT
nut_styleSINGLE BALL SEAT, HEXAGON
thickness0.1500 INCHES NOMINAL IN
body_width2.188 INCHES MAXIMUM IN
nut_height0.812 INCHES NOMINAL IN
body_height2.875 INCHES NOMINAL IN
body_length3.312 INCHES MAXIMUM IN
handle_typeSLIDING STRAIGHT
thread_class2B
bore_diameter0.1250 INCHES NOMINAL IN
NSN5310-00-264-0542
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C539 · 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
NUT STYLE: SINGLE BALL SEAT, HEXAGON
THREAD CLASS: 2B
THREAD SERIES: UNF
NOMINAL THREAD SIZE: 0.625 INCHES IN
THREAD QUANTITY PER INCH: 18
MATERIAL: STEEL OVERALL
BALL SEAT RADIUS: 0.625 INCHES NOMINAL IN
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLESINGLE BALL SEAT, HEXAGON
THREAD CLASS2B
THREAD SERIESUNF
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD QUANTITY PER INCH18
MATERIALSTEEL OVERALL
BALL SEAT RADIUS0.625 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
NUT HEIGHT0.812 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
A539FS160Interchangeable
interchangeable cross-reference
interchangeable
A539Interchangeable
interchangeable cross-reference
interchangeable
GGG-A-821Interchangeable
interchangeable cross-reference
interchangeable
C539Interchangeable
interchangeable cross-reference
interchangeable
15-03409-00Interchangeable
interchangeable cross-reference
interchangeable
153409Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C539?
C539 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace C539?
There are 28 known substitutes for C539: A539FS160, A539, GGG-A-821 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C539?
C539 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-264-0542. This indicates validated use in U.S. government and defense supply chains.
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