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BACN10DR — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BACN10DR: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, nut_style: HEXAGON, nut_height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), special_features: TWO DRILLED LOCKWIRE HOLES IN HEX 180 DEG APART,0.046 IN. DIA HOLES,0.625 IN.

C TO C OF HOLES IN. This part is cataloged in the U.S. Government catalog under NSN 5310-00-466-7549, 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
BACN10DR
NSN: 5310-00-466-7549
NIINs: 004667549, 005751732, 006594617, 006594618, 006594620, 006701144
FSC: 5310 — Nuts and Washers
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
nut_styleHEXAGON
nut_height0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
special_featuresTWO DRILLED LOCKWIRE HOLES IN HEX 180 DEG APART,0.046 IN. DIA HOLES,0.625 IN. C TO C OF HOLES IN
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
surface_treatmentANODIZE OVERALL
width_across_flats0.684 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-466-7549
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BACN10DR · 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
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WIDTH ACROSS FLATS: 1.609 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT (UNJ)
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HOLE CONFIGURATION STYLE: CONFIGURATION B
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6,T851 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 1.312 INCHES IN
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SPECIFICATION/STANDARD DATA: 81205-BACN10DR MANUFACTURERS STANDARD
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.609 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT (UNJ)
HOLE CONFIGURATION STYLECONFIGURATION B
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6,T851 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.312 INCHES IN
SPECIFICATION/STANDARD DATA81205-BACN10DR MANUFACTURERS STANDARD
NUT HEIGHT0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
DRILLED HOLE DIAMETER0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
BACN10DR16DReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACN10DR?
BACN10DR is a LOCKNUT,TUBE FITTING.
What parts can replace BACN10DR?
There is 1 known substitute for BACN10DR: BACN10DR16D. Substitute compatibility should be verified for your specific system.
What is the NSN for BACN10DR?
BACN10DR is cataloged in the U.S. Government catalog under NSN 5310-00-466-7549. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.