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ADH5051A — NUT,PLAIN,OCTAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ADH5051A: NUT,PLAIN,OCTAGON.

The NUT,PLAIN,OCTAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: PLAIN, OCTAGON, nut_height: 0.875 INCHES NOMINAL IN, thread_series: UNS, thread_direction: RIGHT-HAND, countersink_angle: 90.0 DEGREES NOMINAL BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-175-3703, 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
ADH5051A
NSN: 5310-01-175-3703
FSC: 5310 — Nuts and Washers
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_stylePLAIN, OCTAGON
nut_height0.875 INCHES NOMINAL IN
thread_seriesUNS
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL BOTH ENDS
width_across_flats4.000 INCHES NOMINAL IN
nominal_thread_size2.933 INCHES IN
bearing_surface_typeCHAMFERED
drilled_hole_diameter0.156 INCHES NOMINAL IN
hole_type_and_quantity1 DRILLED
thread_pitch_diameters+2.8789 TO 2.8871 INCHES IN
NSN5310-01-175-3703
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ADH5051A · 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: 4.000 INCHES NOMINAL IN
•
THREAD SERIES: UNS
•
HOLE CONFIGURATION STYLE: CONFIGURATION A
•
THREAD PITCH DIAMETERS: +2.8789 TO 2.8871 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.933 INCHES IN
•
NUT HEIGHT: 0.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS4.000 INCHES NOMINAL IN
THREAD SERIESUNS
HOLE CONFIGURATION STYLECONFIGURATION A
THREAD PITCH DIAMETERS+2.8789 TO 2.8871 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.933 INCHES IN
NUT HEIGHT0.875 INCHES NOMINAL IN
DRILLED HOLE DIAMETER0.156 INCHES NOMINAL IN
COUNTERSINK ANGLE90.0 DEGREES NOMINAL BOTH ENDS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ADH5051A?
ADH5051A is a NUT,PLAIN,OCTAGON.
What is the NSN for ADH5051A?
ADH5051A is cataloged in the U.S. Government catalog under NSN 5310-01-175-3703. 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.