PartsTable
Technical Data Sheet
10558 ✓ Verified by PartsTable
Trefl · 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

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include phase: SINGLE, width: 0.183 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, length: 0.380 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, radius: 0.312 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN, material: STEEL, nut_style: SLOTTED, HEXAGON. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-2647, 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
10558
NSN: 5310-00-010-2647
FSC: 5310
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
phaseSINGLE
width0.183 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
length0.380 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
radius0.312 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
materialSTEEL
nut_styleSLOTTED, HEXAGON
thickness0.500 INCHES NOMINAL IN
top_styleFLAT
body_styleHEADSET, COVERED
nut_height0.438 INCHES NOMINAL IN
point_typeCONVENTIONAL
design_typeMECHANICAL
NSN5310-00-010-2647
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10558 · Trefl ⚠ 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
THREAD DIRECTION: RIGHT-HAND
NUT STYLE: SLOTTED, HEXAGON
NOMINAL THREAD SIZE: 0.500 INCHES IN
THREAD SERIES: UNF
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 20
THREAD CLASS: 2B
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NUT STYLESLOTTED, HEXAGON
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH20
THREAD CLASS2B
MATERIALSTEEL OVERALL
NUT HEIGHT0.438 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
91894Interchangeable
interchangeable cross-reference
interchangeable
138203Interchangeable
interchangeable cross-reference
interchangeable
FFS86TYPE1STYLE11Interchangeable
interchangeable cross-reference
interchangeable
2510 1/8Interchangeable
interchangeable cross-reference
interchangeable
C08665Interchangeable
interchangeable cross-reference
interchangeable
10558Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10558?
10558 is a TRANSFORMER,POWER AUTOTRANSFORME manufactured by Trefl.
What parts can replace 10558?
There are 24 known substitutes for 10558: 91894, 138203, FFS86TYPE1STYLE11 and 21 more. Substitute compatibility should be verified for your specific system.
Is 10558 still available?
10558 is currently cancelled.
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