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Technical Data Sheet
PartsTable / COMPONENT / 53-003-022PC7
53-003-022PC7 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include nut_style: ROUND, nut_diameter: 3.875 INCHES NOMINAL IN, nut_thickness: 0.5938 INCHES NOMINAL IN, thread_series: UNS, hardness_rating: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-185-6444, 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
53-003-022PC7
NSN: 5310-00-185-6444
FSC: 5310
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
nut_styleROUND
nut_diameter3.875 INCHES NOMINAL IN
nut_thickness0.5938 INCHES NOMINAL IN
thread_seriesUNS
hardness_rating66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
thread_directionRIGHT-HAND
drive_point_depth0.125 INCHES NOMINAL IN
drive_point_width0.375 INCHES NOMINAL IN
nominal_thread_size2.933 INCHES IN
drive_point_quantity4
thread_pitch_diameters+2.8789 TO 2.8843 INCHES IN
thread_quantity_per_inch11
NSN5310-00-185-6444
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 53-003-022PC7 · 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 DIRECTION: RIGHT-HAND
•
HARDNESS RATING: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
•
THREAD QUANTITY PER INCH: 11
•
THREAD SERIES: UNS
•
NOMINAL THREAD SIZE: 2.933 INCHES IN
•
NUT STYLE: ROUND
•
DRIVE POINT DEPTH: 0.125 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
HARDNESS RATING66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
THREAD QUANTITY PER INCH11
THREAD SERIESUNS
NOMINAL THREAD SIZE2.933 INCHES IN
NUT STYLEROUND
DRIVE POINT DEPTH0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
DRIVE POINT QUANTITY4
NUT THICKNESS0.5938 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
3211688Interchangeable
interchangeable cross-reference
interchangeable
0913636-7Interchangeable
interchangeable cross-reference
interchangeable
33784SInterchangeable
interchangeable cross-reference
interchangeable
NR15Interchangeable
interchangeable cross-reference
interchangeable
G379508SH2PC43Interchangeable
interchangeable cross-reference
interchangeable
MAFB2435APC24Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 53-003-022PC7?
53-003-022PC7 is a NUT,PLAIN,ROUND.
What parts can replace 53-003-022PC7?
There are 16 known substitutes for 53-003-022PC7: 3211688, 0913636-7, 33784S and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 53-003-022PC7?
53-003-022PC7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-185-6444. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026