PartsTable
Technical Data Sheet
2533408PC37 ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM LOCKING INSERT, nut_style: HEXAGON, nut_height: 1.578 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-022-3069, 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
2533408PC37
NSN: 5310-00-022-3069
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM LOCKING INSERT
nut_styleHEXAGON
nut_height1.578 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL EXCEPT INSERT
width_across_flats2.159 INCHES MINIMUM AND 2.197 INCHES MAXIMUM IN
nominal_thread_size1.500 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-022-3069
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2533408PC37 · 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
NUT STYLE: HEXAGON
THREAD CLASS: 3B
NOMINAL THREAD SIZE: 1.500 INCHES IN
BEARING SURFACE FINISH: 125.0 MICROINCHES
BEARING SURFACE TYPE: CHAMFERED
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
SURFACE TREATMENT: ZINC OVERALL EXCEPT INSERT
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD CLASS3B
NOMINAL THREAD SIZE1.500 INCHES IN
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
SURFACE TREATMENTZINC OVERALL EXCEPT INSERT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
MATERIALSTEEL COMP 1117 NUT
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
1958-1Interchangeable
interchangeable cross-reference
interchangeable
7819604-01Interchangeable
interchangeable cross-reference
interchangeable
82S185Interchangeable
interchangeable cross-reference
interchangeable
RY4289-002Interchangeable
interchangeable cross-reference
interchangeable
HM-7685Interchangeable
interchangeable cross-reference
interchangeable
41NE242Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2533408PC37?
2533408PC37 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 2533408PC37?
There are 6 known substitutes for 2533408PC37: 1958-1, 7819604-01, 82S185 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2533408PC37?
2533408PC37 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-022-3069. This indicates validated use in U.S. government and defense supply chains.
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