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Technical Data Sheet
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125-013 — Technical Data Sheet

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— · MRO · MRO_GENERAL
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,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL OVERALL, nut_style: CASTELLATED, HEXAGON, body_style: RECTANGULAR, body_width: 0.190 INCHES NOMINAL IN, nut_height: 0.281 INCHES NOMINAL IN, body_height: 0.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-00-012-5013, 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→ 125-013
NSN: 5310-00-012-5013
FSC: 5310
CAGE: 00000
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleCASTELLATED, HEXAGON
body_styleRECTANGULAR
body_width0.190 INCHES NOMINAL IN
nut_height0.281 INCHES NOMINAL IN
body_height0.250 INCHES NOMINAL IN
body_length0.750 INCHES NOMINAL IN
shaft_styleROUND, SLOTTED
shaft_length0.060 INCHES NOMINAL IN
thread_class2B
actuator_typeSINGLE SHAFT
thread_seriesUNF
NSN5310-00-012-5013
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 125-013 · 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
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD CLASS: 2B
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
NUT HEIGHT: 0.281 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS2B
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
NUT HEIGHT0.281 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NUT STYLECASTELLATED, HEXAGON
THREAD SERIESUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
100163-102InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
25748-504InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RS0377367InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FFB571TYPEAInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
AC334InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
BBFX1A1InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 125-013?
125-013 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace 125-013?
There are 8 known substitutes for 125-013: 100163-102, 25748-504, RS0377367 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 125-013?
125-013 is cataloged in the Federal Logistics Information System under NSN 5310-00-012-5013. 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: October 2026