PartsTable
Technical Data Sheet
3451-NU13841-101 ✓ 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 NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL, nut_style: HEXAGON, nut_height: 0.844 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNJC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-450-7796, 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
3451-NU13841-101
NSN: 5310-01-450-7796
FSC: 5310
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
nut_styleHEXAGON
nut_height0.844 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
hardness_rating80.0 ROCKWELL C MINIMUM
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats1.052 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-01-450-7796
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3451-NU13841-101 · 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 HEIGHT: 0.844 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
HARDNESS RATING: 80.0 ROCKWELL C MINIMUM
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL: NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
BEARING SURFACE TYPE: CHAMFERED
NOMINAL THREAD SIZE: 0.625 INCHES IN
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT0.844 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
HARDNESS RATING80.0 ROCKWELL C MINIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
THREAD QUANTITY PER INCH11
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
RW-166886 PIECE 1.6L1Interchangeable
interchangeable cross-reference
interchangeable
807045-15L1Interchangeable
interchangeable cross-reference
interchangeable
505-4457351 PIECE 152L1Interchangeable
interchangeable cross-reference
interchangeable
2643-820-12 ITEM 53Interchangeable
interchangeable cross-reference
interchangeable
211070737Interchangeable
interchangeable cross-reference
interchangeable
M25027/1-14CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3451-NU13841-101?
3451-NU13841-101 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 3451-NU13841-101?
There are 27 known substitutes for 3451-NU13841-101: RW-166886 PIECE 1.6L1, 807045-15L1, 505-4457351 PIECE 152L1 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3451-NU13841-101?
3451-NU13841-101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-450-7796. This indicates validated use in U.S. government and defense supply chains.
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