PartsTable
Technical Data Sheet
25178 ✓ Verified by PartsTable
Ugreen · 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 REACTOR is a Ugreen industrial component. Key specifications include material: COPPER ALLOY 260, nut_style: HEXAGON, nut_height: 0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN, body_length: 1.438 INCHES NOMINAL IN, construction: ONE-PIECE, thread_class: 2B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-556-7854, 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
25178
NSN: 5310-00-556-7854
FSC: 5310
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialCOPPER ALLOY 260
nut_styleHEXAGON
nut_height0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
body_length1.438 INCHES NOMINAL IN
constructionONE-PIECE
thread_class2B
hole_diameter0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
thread_seriesUNF
inclosure_typeHERMETICALLY SEALED
inductance_typeFIXED
mounting_methodTHREADED STUD(S) SINGLE GROUP
NSN5310-00-556-7854
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 25178 · Ugreen ⚠ 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 QUANTITY PER INCH: 20
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE: 0.500 INCHES IN
THREAD SERIES: UNF
NUT HEIGHT: 0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
THREAD DIRECTION: RIGHT-HAND
NUT STYLE: HEXAGON
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD SERIESUNF
NUT HEIGHT0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
THREAD CLASS2B
WIDTH ACROSS FLATS0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
4369444Interchangeable
interchangeable cross-reference
interchangeable
3025178-9Interchangeable
interchangeable cross-reference
interchangeable
678-0366-00Interchangeable
interchangeable cross-reference
interchangeable
25178Interchangeable
interchangeable cross-reference
interchangeable
1270-28625 ITEM 11Interchangeable
interchangeable cross-reference
interchangeable
MP150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25178?
25178 is a REACTOR manufactured by Ugreen.
What parts can replace 25178?
There are 6 known substitutes for 25178: 4369444, 3025178-9, 678-0366-00 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25178?
25178 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-556-7854. This indicates validated use in U.S. government and defense supply chains.
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