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Technical Data Sheet
PartsTable / COMPONENT / M25027/1-16C
M25027/1-16C ✓ 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

The M25027/1-16C is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-205-7844, 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
M25027/1-16C
NSN: 5310-00-205-7844
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberM25027/1-16C
NSN5310-00-205-7844
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M25027/1-16C · 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: 1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3B
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
•
MATERIAL: NICKEL ALLOY R-405 NUT
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN
NOMINAL THREAD SIZE1.000 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
MATERIALNICKEL ALLOY R-405 NUT
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH8
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
ESNA 09NU-168Interchangeable
interchangeable cross-reference
interchangeable
845-4687581 ITEM31L1Interchangeable
interchangeable cross-reference
interchangeable
100-4641848 ITEM3Interchangeable
interchangeable cross-reference
interchangeable
218017951Interchangeable
interchangeable cross-reference
interchangeable
M25027/1-16CInterchangeable
interchangeable cross-reference
interchangeable
H547-1721-38D4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M25027/1-16C?
M25027/1-16C is a M25027/1-16C.
What parts can replace M25027/1-16C?
There are 12 known substitutes for M25027/1-16C: ESNA 09NU-168, 845-4687581 ITEM31L1, 100-4641848 ITEM3 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M25027/1-16C?
M25027/1-16C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-205-7844. 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