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404253 — TERMINAL BOX

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

404253: TERMINAL BOX.

The TERMINAL BOX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: KNURLED, nut_diameter: 0.340 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.281 INCHES NOMINAL IN, thread_series: UNEF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-328-5879, 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
404253
NSN: 5310-00-328-5879
NIINs: 003285879, 004742097, 015820178
FSC: 5310 — Nuts and Washers
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleKNURLED
nut_diameter0.340 INCHES NOMINAL IN
thread_class3B
nut_thickness0.281 INCHES NOMINAL IN
thread_seriesUNEF
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch32
NSN5310-00-328-5879
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 404253 · 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: UNEF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT DIAMETER: 0.340 INCHES NOMINAL IN
•
NUT THICKNESS: 0.281 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NUT STYLE: KNURLED
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
THREAD SERIESUNEF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER0.340 INCHES NOMINAL IN
NUT THICKNESS0.281 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLEKNURLED
THREAD CLASS3B
THREAD QUANTITY PER INCH32
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 404253?
404253 is a TERMINAL BOX.
What is the NSN for 404253?
404253 is cataloged in the U.S. Government catalog under NSN 5310-00-328-5879. This indicates validated use in U.S. government and defense supply chains.
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