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NC300-20 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NC300-20: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 464 OR COPPER ALLOY 462 OVERALL, nut_style: HEXAGON, nut_height: 0.125 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 5310-00-189-8545, 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
NC300-20
NSN: 5310-00-189-8545
FSC: 5310 — Nuts and Washers
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY 464 OR COPPER ALLOY 462 OVERALL
nut_styleHEXAGON
nut_height0.125 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch20
nondefinitive_spec/std_dataA TYPE
departure_from_cited_documentAS MODIFIED BY THD CLASS REQUIREMENT
NSN5310-00-189-8545
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NC300-20 · 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: 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-35-CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY THD CLASS REQUIREMENT
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
•
NUT HEIGHT: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-35-CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY THD CLASS REQUIREMENT
NONDEFINITIVE SPEC/STD DATAA TYPE
NUT HEIGHT0.125 INCHES NOMINAL IN
NUT STYLEHEXAGON
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
MILS933TYPEAReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NC300-20?
NC300-20 is a NUT,PLAIN,HEXAGON.
What parts can replace NC300-20?
There is 1 known substitute for NC300-20: MILS933TYPEA. Substitute compatibility should be verified for your specific system.
What is the NSN for NC300-20?
NC300-20 is cataloged in the U.S. Government catalog under NSN 5310-00-189-8545. This indicates validated use in U.S. government and defense supply chains.
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