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MAD3G603APC28 — NUT,PLAIN,SLOTTED,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MAD3G603APC28: NUT,PLAIN,SLOTTED,HEXAGON.

The NUT,PLAIN,SLOTTED,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.688 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-281-5357, 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
MAD3G603APC28
NSN: 5310-00-281-5357
FSC: 5310 — Nuts and Washers
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.688 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats1.000 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch11
NSN5310-00-281-5357
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MAD3G603APC28 · 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: 1.000 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-639 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OR QQ-B-637 FED SPEC 4TH MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
NUT HEIGHT: 0.688 INCHES NOMINAL IN
•
NUT STYLE: SLOTTED, HEXAGON
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-639 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OR QQ-B-637 FED SPEC 4TH MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES IN
NUT HEIGHT0.688 INCHES NOMINAL IN
NUT STYLESLOTTED, HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH11
MATERIALCOPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
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 9
MAD6G603APC28Reference document
Same NSN cross-reference
Reference document — Secondary reference
10AD3E603APC28Reference document
Same NSN cross-reference
Reference document — Secondary reference
10AD3E603DPC28Reference document
Same NSN cross-reference
Reference document — Secondary reference
MAD7G603APC28Reference document
Same NSN cross-reference
Reference document — Secondary reference
13AD6D603APC28Reference document
Same NSN cross-reference
Reference document — Secondary reference
7AD6D603CPC28Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MAD3G603APC28?
MAD3G603APC28 is a NUT,PLAIN,SLOTTED,HEXAGON.
What parts can replace MAD3G603APC28?
There are 9 known substitutes for MAD3G603APC28: MAD6G603APC28, 10AD3E603APC28, 10AD3E603DPC28 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MAD3G603APC28?
MAD3G603APC28 is cataloged in the U.S. Government catalog under NSN 5310-00-281-5357. 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.