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BM501178-2 — NUT,PLAIN,SQUARE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BM501178-2: NUT,PLAIN,SQUARE.

The NUT,PLAIN,SQUARE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, nut_style: SQUARE, nut_height: 0.188 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: COMPRESSION PROJECTION ON ONE SIDE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-195-1379, 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
BM501178-2
NSN: 5310-00-195-1379
FSC: 5310 — Nuts and Washers
CAGE: 17023 — BRUCE AEROSPACE INC (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
nut_styleSQUARE
nut_height0.188 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresCOMPRESSION PROJECTION ON ONE SIDE
thread_directionRIGHT-HAND
width_across_flats0.380 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES IN
thread_quantity_per_inch32
NSN5310-00-195-1379
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BM501178-2 · 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: 0.380 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT HEIGHT: 0.188 INCHES NOMINAL IN
•
NUT STYLE: SQUARE
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.380 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT HEIGHT0.188 INCHES NOMINAL IN
SPECIAL FEATURESCOMPRESSION PROJECTION ON ONE SIDE
NUT STYLESQUARE
THREAD CLASS3B
THREAD QUANTITY PER INCH32
MATERIALPLASTIC OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BM501178-2?
BM501178-2 is a NUT,PLAIN,SQUARE.
What is the NSN for BM501178-2?
BM501178-2 is cataloged in the U.S. Government catalog under NSN 5310-00-195-1379. This indicates validated use in U.S. government and defense supply chains.
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