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74A410776-2003 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

74A410776-2003: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, nut_height: 0.430 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), thread_direction: RIGHT-HAND, width_across_flats: 1.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-146-0491, 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
74A410776-2003
NSN: 5310-01-146-0491
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height0.430 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
width_across_flats1.875 INCHES NOMINAL IN
nominal_thread_size1.375 INCHES IN
thread_quantity_per_inch12
NSN5310-01-146-0491
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74A410776-2003 · 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: 1.875 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.375 INCHES IN
•
NUT HEIGHT: 0.430 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 12
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.875 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.375 INCHES IN
NUT HEIGHT0.430 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH12
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 1
10109808Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 74A410776-2003?
74A410776-2003 is a NUT,PLAIN,HEXAGON.
What parts can replace 74A410776-2003?
There is 1 known substitute for 74A410776-2003: 10109808. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A410776-2003?
74A410776-2003 is cataloged in the U.S. Government catalog under NSN 5310-01-146-0491. 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.