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R49550-2 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R49550-2: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: ROUND, nut_diameter: 1.467 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.627 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-043-8544, 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
R49550-2
NSN: 5310-01-043-8544
FSC: 5310 — Nuts and Washers
CAGE: 830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleROUND
nut_diameter1.467 INCHES NOMINAL IN
thread_class2B
nut_thickness0.627 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_features0.125 IN RADIUS OF NUT DIA OF ONE SURFACE IN
thread_directionRIGHT-HAND
width_across_flats1.372 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES IN
thread_quantity_per_inch13
NSN5310-01-043-8544
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R49550-2 · 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: 1.372 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
NUT DIAMETER: 1.467 INCHES NOMINAL IN
•
NUT THICKNESS: 0.627 INCHES NOMINAL IN
•
NUT STYLE: ROUND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.372 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
NUT DIAMETER1.467 INCHES NOMINAL IN
NUT THICKNESS0.627 INCHES NOMINAL IN
SPECIAL FEATURES0.125 IN RADIUS OF NUT DIA OF ONE SURFACE IN
NUT STYLEROUND
THREAD CLASS2B
THREAD QUANTITY PER INCH13
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

No substitute or cross-reference records for this part.

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 R49550-2?
R49550-2 is a NUT,PLAIN,ROUND.
What is the NSN for R49550-2?
R49550-2 is cataloged in the U.S. Government catalog under NSN 5310-01-043-8544. 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.