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PartsTable / COMPONENT / 00251
00251 ✓ 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

HEATING ELEMENT,ELECTRICAL,NONIM. Key specifications include specific_use: ULTRASONIC WEAPON CLEANING, physical_form: LIQUID, special_features: ORORLESS; NON-AMMONIATED TO PRECLUDE SURFACE DAMAGE; NO HARMFUL SOLVENTS; BIODEGRADABLE, unable_to_decode: UNABLE TO DECODE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-227-1962, 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
00251
NSN: 5310-00-227-1962
FSC: 5310
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
specific_useULTRASONIC WEAPON CLEANING
physical_formLIQUID
special_featuresORORLESS; NON-AMMONIATED TO PRECLUDE SURFACE DAMAGE; NO HARMFUL SOLVENTS; BIODEGRADABLE
unable_to_decodeUNABLE TO DECODE
NSN5310-00-227-1962
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 00251 · 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
•
NUT STYLE: ROUND
•
DRIVE POINT QUANTITY: 6
•
DRIVE POINT DEPTH: 0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN
•
THREAD CLASS: 3B
•
THREAD SERIES: UN
•
THREAD QUANTITY PER INCH: 16
•
NOMINAL THREAD SIZE: 2.625 INCHES IN
•
NUT DIAMETER: 3.334 INCHES MINIMUM AND 3.354 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEROUND
DRIVE POINT QUANTITY6
DRIVE POINT DEPTH0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN
THREAD CLASS3B
THREAD SERIESUN
THREAD QUANTITY PER INCH16
NOMINAL THREAD SIZE2.625 INCHES IN
NUT DIAMETER3.334 INCHES MINIMUM AND 3.354 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NUT THICKNESS0.368 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
00251Interchangeable
interchangeable cross-reference
interchangeable
DC-70Interchangeable
interchangeable cross-reference
interchangeable
00215Interchangeable
interchangeable cross-reference
interchangeable
3659722Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 00251?
00251 is a HEATING ELEMENT,ELECTRICAL,NONIM.
What parts can replace 00251?
There are 4 known substitutes for 00251: 00251, DC-70, 00215 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 00251?
00251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-227-1962. 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