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544003 — INSERT,SCREW THREAD

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

544003: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 0.645 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN, insert_size: 1/2 IN.-13 UNC OR NC CLASS 3A THD OR CLASS 3 FIT A, style_designator: KEYLOCK, surface_treatment: PASSIVATE OVERALL, full_internal_thread_length: 0.395 INCHES MINIMUM IN, top_portion_unthreaded_outside_length: 0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-496-8302, 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
544003
NSN: 5315-00-496-8302
NIINs: 004968302, 005342860, 007541816
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
length0.645 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN
insert_size1/2 IN.-13 UNC OR NC CLASS 3A THD OR CLASS 3 FIT A
style_designatorKEYLOCK
surface_treatmentPASSIVATE OVERALL
full_internal_thread_length0.395 INCHES MINIMUM IN
top_portion_unthreaded_outside_length0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
top_unthreaded_portion_outside_diameter0.398 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
NSN5315-00-496-8302
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 544003 · 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
•
FIRST END TAPER LENGTH: 0.015 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
FIRST END TAPER ANGLE: 25.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.2500 INCHES NOMINAL IN
•
PIN OVERALL LENGTH: 0.613 INCHES MINIMUM AND 0.638 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.015 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
FIRST END TAPER ANGLE25.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.2500 INCHES NOMINAL IN
PIN OVERALL LENGTH0.613 INCHES MINIMUM AND 0.638 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
XX003-2116Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 544003?
544003 is a INSERT,SCREW THREAD.
What parts can replace 544003?
There is 1 known substitute for 544003: XX003-2116. Substitute compatibility should be verified for your specific system.
What is the NSN for 544003?
544003 is cataloged in the U.S. Government catalog under NSN 5315-00-496-8302. This indicates validated use in U.S. government and defense supply chains.
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