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546658 PC 19 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

546658 PC 19: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, nut_style: HEXAGON, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND, nominal_thread_size: 0.750 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-325-9384, 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
546658 PC 19
NSN: 5310-01-325-9384
FSC: 5310 — Nuts and Washers
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
nut_styleHEXAGON
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
nominal_thread_size0.750 INCHES IN
thread_quantity_per_inch16
nondefinitive_spec/std_data2 TYPE AND A STYLE
NSN5310-01-325-9384
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 546658 PC 19 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND A STYLE
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
•
THREAD QUANTITY PER INCH: 16
•
MATERIAL: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND A STYLE
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH16
MATERIALNICKEL ALLOY 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 2
MIL-DTL-1222Reference document
Same NSN cross-reference
Reference document — Identification reference
MIL-S-1222Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 546658 PC 19?
546658 PC 19 is a NUT,PLAIN,HEXAGON.
What parts can replace 546658 PC 19?
There are 2 known substitutes for 546658 PC 19: MIL-DTL-1222, MIL-S-1222. Substitute compatibility should be verified for your specific system.
What is the NSN for 546658 PC 19?
546658 PC 19 is cataloged in the U.S. Government catalog under NSN 5310-01-325-9384. 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.