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7540003 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7540003: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_diameter: 1.187 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.406 INCHES NOMINAL IN, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-754-0003, 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
7540003
NSN: 5310-00-754-0003
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_diameter1.187 INCHES NOMINAL IN
thread_class3B
nut_thickness0.406 INCHES NOMINAL IN
thread_seriesUNF
thread_directionRIGHT-HAND
drive_point_depth0.062 INCHES NOMINAL IN
drive_point_width0.156 INCHES NOMINAL IN
small_end_diameter0.843 INCHES NOMINAL IN
nominal_thread_size1.000 INCHES IN
drive_point_quantity2
thread_quantity_per_inch12
NSN5310-00-754-0003
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7540003 · 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
•
THREAD SERIES: UNF
•
DRIVE POINT WIDTH: 0.156 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
NUT DIAMETER: 1.187 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.062 INCHES NOMINAL IN
•
NUT THICKNESS: 0.406 INCHES NOMINAL IN
•
SMALL END DIAMETER: 0.843 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
DRIVE POINT WIDTH0.156 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.000 INCHES IN
NUT DIAMETER1.187 INCHES NOMINAL IN
DRIVE POINT DEPTH0.062 INCHES NOMINAL IN
NUT THICKNESS0.406 INCHES NOMINAL IN
SMALL END DIAMETER0.843 INCHES NOMINAL IN
DRIVE POINT QUANTITY2
THREAD CLASS3B
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
1884132Reference 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 7540003?
7540003 is a NUT,PLAIN,ROUND.
What parts can replace 7540003?
There is 1 known substitute for 7540003: 1884132. Substitute compatibility should be verified for your specific system.
What is the NSN for 7540003?
7540003 is cataloged in the U.S. Government catalog under NSN 5310-00-754-0003. 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.