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B911-1-4 — NUT,PLAIN,RECTANGULAR

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B911-1-4: NUT,PLAIN,RECTANGULAR.

The NUT,PLAIN,RECTANGULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: PLAIN, RECTANGULAR, nut_width: 1.250 INCHES NOMINAL IN, nut_height: 0.185 INCHES NOMINAL IN, nut_length: 1.375 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-477-2379, 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
B911-1-4
NSN: 5310-00-477-2379
FSC: 5310 — Nuts and Washers
CAGE: 56501 — ABB INSTALLATION PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_stylePLAIN, RECTANGULAR
nut_width1.250 INCHES NOMINAL IN
nut_height0.185 INCHES NOMINAL IN
nut_length1.375 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresWITH ONE SPRING ON NUT 1.188 INCHLONG BY 0.740 INCH OD IN
thread_directionRIGHT-HAND
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch20
NSN5310-00-477-2379
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B911-1-4 · 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 WIDTH: 1.250 INCHES NOMINAL IN
•
NUT LENGTH: 1.375 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.185 INCHES NOMINAL IN
•
NUT STYLE: PLAIN, RECTANGULAR
TECHNICAL CHARACTERISTICS
NUT WIDTH1.250 INCHES NOMINAL IN
NUT LENGTH1.375 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.185 INCHES NOMINAL IN
SPECIAL FEATURESWITH ONE SPRING ON NUT 1.188 INCHLONG BY 0.740 INCH OD IN
NUT STYLEPLAIN, RECTANGULAR
THREAD CLASS2B
THREAD QUANTITY PER INCH20
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 B911-1-4?
B911-1-4 is a NUT,PLAIN,RECTANGULAR.
What is the NSN for B911-1-4?
B911-1-4 is cataloged in the U.S. Government catalog under NSN 5310-00-477-2379. 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.