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8100-1251-0310 — SPINDLE,MECHANICALLY ACTUATED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8100-1251-0310: SPINDLE,MECHANICALLY ACTUATED.

The SPINDLE,MECHANICALLY ACTUATED is a the manufacturer industrial component. Key specifications include width: 4.0625 INCHES NOMINAL IN, height: 0.875 INCHES NOMINAL IN, diameter: 2.0312 INCHES NOMINAL IN, material: STEEL, design_type: ADJUSTABLE, corner_shape: SQUARE ALL CORNERS. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-476-6131, 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
8100-1251-0310
NSN: 5315-01-476-6131
NIINs: 014766131, 014766220, 014766222, 014766225, 014766512, 014766516, 014766517, 014766526, 014766545, 014766550, 014766559, 014767534, 014767650, 014768030
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 70876 — BATH IRON WORKS CORPORATION (USA)
SPECIFICATIONS
width4.0625 INCHES NOMINAL IN
height0.875 INCHES NOMINAL IN
diameter2.0312 INCHES NOMINAL IN
materialSTEEL
design_typeADJUSTABLE
corner_shapeSQUARE ALL CORNERS
thread_class3A A
thread_length0.500 INCHES NOMINAL IN
chamfer_length0.062 INCHES NOMINAL IN
overall_length7.3750 INCHES NOMINAL IN
first_end_styleSLOTTED
pin_grip_length2.375 INCHES NOMINAL IN
NSN5315-01-476-6131
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8100-1251-0310 · 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 LOCATION: THREADED END
•
FIRST END SLOT WIDTH: 0.078 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES NOMINAL IN
•
FIRST END STYLE: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.2420 INCHES NOMINAL IN
•
PIN OVERALL LENGTH: 2.875 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
TECHNICAL CHARACTERISTICS
FIRST END LOCATIONTHREADED END
FIRST END SLOT WIDTH0.078 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES NOMINAL IN
FIRST END STYLESLOTTED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.2420 INCHES NOMINAL IN
PIN OVERALL LENGTH2.875 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
8100-1251-0310 PC NO 310Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 8100-1251-0310?
8100-1251-0310 is a SPINDLE,MECHANICALLY ACTUATED.
What parts can replace 8100-1251-0310?
There is 1 known substitute for 8100-1251-0310: 8100-1251-0310 PC NO 310. Substitute compatibility should be verified for your specific system.
What is the NSN for 8100-1251-0310?
8100-1251-0310 is cataloged in the U.S. Government catalog under NSN 5315-01-476-6131. 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.