PartsTable
Technical Data Sheet
BBN-0749 ✓ 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 400 OVERALL EXCEPT INSERT, nut_style: HEXAGON, nut_height: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNJC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-135-9906, 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
BBN-0749
NSN: 5310-01-135-9906
FSC: 5310
CAGE: 42280 — GARDNER DENVER NASH LLC DBA GARDNER DENVER ENGINEERED PRODUCTS GROUP DIV GARDNER DENVER NASH (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL EXCEPT INSERT
nut_styleHEXAGON
nut_height1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats1.427 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN
nominal_thread_size0.875 INCHES IN
bearing_surface_typeCHAMFERED
end_item_identificationOHIO CLASS SSN (TRIDENT); NIMITZ CLASS CVN; ARLEIGH BURKE CLASS DDG
NSN5310-01-135-9906
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BBN-0749 · 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
MATERIAL: NICKEL ALLOY 400 OVERALL EXCEPT INSERT
NUT STYLE: HEXAGON
BEARING SURFACE TYPE: CHAMFERED
NOMINAL THREAD SIZE: 0.875 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT
THREAD QUANTITY PER INCH: 9
NUT HEIGHT: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY 400 OVERALL EXCEPT INSERT
NUT STYLEHEXAGON
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.875 INCHES IN
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT
THREAD QUANTITY PER INCH9
NUT HEIGHT1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIESUNJC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
0.875-9UNC-3B NICUInterchangeable
interchangeable cross-reference
interchangeable
09NU-149 MONELInterchangeable
interchangeable cross-reference
interchangeable
122-5486623 ITEM 004D4Interchangeable
interchangeable cross-reference
interchangeable
803-6915566-33Interchangeable
Same NIIN cross-reference
interchangeable
09NU-149M0NELInterchangeable
Same NIIN cross-reference
interchangeable
09NU-149/MONEL/Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BBN-0749?
BBN-0749 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace BBN-0749?
There are 8 known substitutes for BBN-0749: 0.875-9UNC-3B NICU, 09NU-149 MONEL, 122-5486623 ITEM 004D4 and 5 more. Substitute compatibility should be verified for your specific system.
Is BBN-0749 still available?
BBN-0749 is currently cancelled.
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