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MB181C4-D-1-14 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MB181C4-D-1-14: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include thread_class: 3A A, first_end_style: CHAMFERED, second_end_style: CHAMFERED, special_features: GRIP LENGTH 0.062 INCHES;OVERALL LENGTH 0.875 INCHES;UNDRILLED IN, style_designator: SHOULDER, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-471-6749, 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
MB181C4-D-1-14
NSN: 5315-01-471-6749
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
thread_class3A A
first_end_styleCHAMFERED
second_end_styleCHAMFERED
special_featuresGRIP LENGTH 0.062 INCHES;OVERALL LENGTH 0.875 INCHES;UNDRILLED IN
style_designatorSHOULDER
thread_directionRIGHT-HAND
first_end_locationTHREADED END
nominal_thread_size0.250 INCHES IN
first_end_taper_angle45.0 DEGREES NOMINAL
first_end_taper_length0.030 INCHES NOMINAL IN
thread_quantity_per_inch28
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5315-01-471-6749
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MB181C4-D-1-14 · 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
•
FIRST END TAPER LENGTH: 0.030 INCHES NOMINAL IN
•
FIRST END LOCATION: THREADED END
•
FIRST END STYLE: CHAMFERED
•
STYLE DESIGNATOR: SHOULDER
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.030 INCHES NOMINAL IN
FIRST END LOCATIONTHREADED END
FIRST END STYLECHAMFERED
STYLE DESIGNATORSHOULDER
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
SPECIAL FEATURESGRIP LENGTH 0.062 INCHES;OVERALL LENGTH 0.875 INCHES;UNDRILLED IN
SECOND END STYLECHAMFERED
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 4
HS5678C4D1-14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11415C4-D-1-14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AAP195C4D1-14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS3258C4-D-1-14Reference 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 MB181C4-D-1-14?
MB181C4-D-1-14 is a PIN,SHOULDER,HEADLESS.
What parts can replace MB181C4-D-1-14?
There are 4 known substitutes for MB181C4-D-1-14: HS5678C4D1-14, 11415C4-D-1-14, AAP195C4D1-14 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MB181C4-D-1-14?
MB181C4-D-1-14 is cataloged in the U.S. Government catalog under NSN 5315-01-471-6749. This indicates validated use in U.S. government and defense supply chains.
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