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12901105 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12901105: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 24.0 MILLIMETERS NOMINAL MM, width_across_flats: 50.0 MILLIMETERS NOMINAL MM, bearing_surface_type: FLAT, end_item_identification: USED ON ADAPTER KIT,XM285 MORTOR W/M121 BIPOD; ARMORED MULTI-PURPOSE VEHICLE (AMPV). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-388-0804, 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
12901105
NSN: 5310-01-388-0804
FSC: 5310 — Nuts and Washers
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height24.0 MILLIMETERS NOMINAL MM
width_across_flats50.0 MILLIMETERS NOMINAL MM
bearing_surface_typeFLAT
end_item_identificationUSED ON ADAPTER KIT,XM285 MORTOR W/M121 BIPOD; ARMORED MULTI-PURPOSE VEHICLE (AMPV)
NSN5310-01-388-0804
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12901105 · 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: 50.0 MILLIMETERS NOMINAL MM
•
NUT HEIGHT: 24.0 MILLIMETERS NOMINAL MM
•
NUT STYLE: HEXAGON
•
MATERIAL: STEEL OVERALL
•
BEARING SURFACE TYPE: FLAT
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS50.0 MILLIMETERS NOMINAL MM
NUT HEIGHT24.0 MILLIMETERS NOMINAL MM
NUT STYLEHEXAGON
END ITEM IDENTIFICATIONUSED ON ADAPTER KIT,XM285 MORTOR W/M121 BIPOD; ARMORED MULTI-PURPOSE VEHICLE (AMPV)
MATERIALSTEEL OVERALL
BEARING SURFACE TYPEFLAT
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12901105?
12901105 is a NUT,PLAIN,HEXAGON.
What is the NSN for 12901105?
12901105 is cataloged in the U.S. Government catalog under NSN 5310-01-388-0804. 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.