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N25311 — NUT,PLAIN,WING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

N25311: NUT,PLAIN,WING.

The NUT,PLAIN,WING is a the manufacturer industrial component. Key specifications include material: STEEL AND IRON OVERALL, nut_style: WING, thread_class: 2B, body_diameter: 0.688 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.719 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-350-2863, 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
N25311
NSN: 5310-00-350-2863
FSC: 5310 — Nuts and Washers
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL AND IRON OVERALL
nut_styleWING
thread_class2B
body_diameter0.688 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.719 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
wing_spread_width1.375 INCHES NOMINAL IN
fabrication_methodFORGED OR CAST
nominal_thread_size0.375 INCHES IN
thread_quantity_per_inch16
NSN5310-00-350-2863
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: N25311 · 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
•
BODY DIAMETER: 0.688 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
NUT STYLE: WING
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
BODY DIAMETER0.688 INCHES NOMINAL IN
OVERALL HEIGHT0.719 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
SURFACE TREATMENTPHOSPHATE OVERALL
NUT STYLEWING
THREAD CLASS2B
THREAD QUANTITY PER INCH16
MATERIALSTEEL AND IRON OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
389308Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
32WA212Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N25311?
N25311 is a NUT,PLAIN,WING.
What parts can replace N25311?
There are 2 known substitutes for N25311: 389308, 32WA212. Substitute compatibility should be verified for your specific system.
What is the NSN for N25311?
N25311 is cataloged in the U.S. Government catalog under NSN 5310-00-350-2863. 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.