PartsTable
Technical Data Sheet
PartsTable / MRO / 550-39
550-39 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: STEEL CORROSION RESISTING, rod_width: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, case_style: SQUARE, head_style: BUTTON, point_type: SPLIT, seal_width: 0.562 INCHES NOMINAL 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 5305-00-454-0466, 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
MRO→ MRO_GENERAL→ 550-39
NSN: 5305-00-454-0466
FSC: 5305
CAGE: 53655 — AVOX SYSTEMS INC DBA AVOX SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
rod_width0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
case_styleSQUARE
head_styleBUTTON
point_typeSPLIT
seal_width0.562 INCHES NOMINAL IN
body_length5.438 INCHES NOMINAL IN
head_height0.063 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
point_angle135.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length1.375 INCHES NOMINAL IN
thread_class3A A
NSN5305-00-454-0466
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 550-39 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
WIDTH ACROSS FLATS: 0.078 INCHES NOMINAL IN
•
THREAD LENGTH: 0.378 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
FASTENER LENGTH: 0.440 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
WIDTH ACROSS FLATS0.078 INCHES NOMINAL IN
THREAD LENGTH0.378 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
NOMINAL THREAD DIAMETER0.138 INCHES IN
FASTENER LENGTH0.440 INCHES NOMINAL IN
HEAD DIAMETER0.250 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
HEAD STYLEBUTTON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
714-0169-00Interchangeable
interchangeable cross-reference
interchangeable
55039Interchangeable
interchangeable cross-reference
interchangeable
2013 39Interchangeable
interchangeable cross-reference
interchangeable
20839Interchangeable
interchangeable cross-reference
interchangeable
NAS907Interchangeable
interchangeable cross-reference
interchangeable
550-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 550-39?
550-39 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 550-39?
There are 16 known substitutes for 550-39: 714-0169-00, 55039, 2013 39 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 550-39?
550-39 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-454-0466. 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