PartsTable
Technical Data Sheet
503267 ✓ 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 TRIGGER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.375 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE ALL METAL DESIGN AND DOWEL PIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-050-3267, 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
503267
NSN: 5310-00-050-3267
FSC: 5310
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.375 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN AND DOWEL PIN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
width_across_flats0.500 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch20
material_document_and_classificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-050-3267
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 503267 · 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 CLASS: 3B
NOMINAL THREAD SIZE: 0.250 INCHES IN
THREAD QUANTITY PER INCH: 20
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
MATERIAL: STEEL OVERALL
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN AND DOWEL PIN
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD QUANTITY PER INCH20
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN AND DOWEL PIN
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
NUT STYLEHEXAGON
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
NUT HEIGHT0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
50326PC7Interchangeable
interchangeable cross-reference
interchangeable
50326-7Interchangeable
interchangeable cross-reference
interchangeable
F310787-26Interchangeable
interchangeable cross-reference
interchangeable
34004-MInterchangeable
interchangeable cross-reference
interchangeable
P80Interchangeable
interchangeable cross-reference
interchangeable
PC315Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 503267?
503267 is a TRIGGER.
What parts can replace 503267?
There are 10 known substitutes for 503267: 50326PC7, 50326-7, F310787-26 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 503267?
503267 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-050-3267. This indicates validated use in U.S. government and defense supply chains.
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