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PWA52781-1 — NUT,PLAIN,KNURLED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PWA52781-1: NUT,PLAIN,KNURLED.

The NUT,PLAIN,KNURLED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4150 OVERALL, nut_style: KNURLED, nut_diameter: 0.750 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.625 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-058-6071, 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
PWA52781-1
NSN: 5310-01-058-6071
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 4150 OVERALL
nut_styleKNURLED
nut_diameter0.750 INCHES NOMINAL IN
thread_class2B
nut_thickness0.625 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
hardness_rating25.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
nominal_thread_size0.500 INCHES IN
thread_quantity_per_inch13
NSN5310-01-058-6071
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PWA52781-1 · 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: UNIFIED NATIONAL COARSE (UNC)
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
NUT DIAMETER: 0.750 INCHES NOMINAL IN
•
NUT THICKNESS: 0.625 INCHES NOMINAL IN
•
NUT STYLE: KNURLED
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
NUT DIAMETER0.750 INCHES NOMINAL IN
NUT THICKNESS0.625 INCHES NOMINAL IN
NUT STYLEKNURLED
THREAD CLASS2B
THREAD QUANTITY PER INCH13
MATERIALSTEEL COMP 4140 OR STEEL COMP 4150 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

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 PWA52781-1?
PWA52781-1 is a NUT,PLAIN,KNURLED.
What is the NSN for PWA52781-1?
PWA52781-1 is cataloged in the U.S. Government catalog under NSN 5310-01-058-6071. This indicates validated use in U.S. government and defense supply chains.
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