PartsTable
Technical Data Sheet
3257 ✓ Verified by PartsTable
PanzerGlass · 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

Protect your phone from the hazards of everyday life with PanzerGlass®. Accidental bumps against sharp-edged dangers in your pocket or crushing falls onto stone-hard pavements are no match for this scratch and shock-resistant screen protector. The screen protector is easy to apply and once installed, you’ll never again fear the sight of your phone tumbling to the ground.

This may never happen, but if it does, you’ll regret not having clicked “add to cart”.<br><br><br>The Edge-to-Edge screen protector covers the entire front surface of your phone, while leaving room for a case. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-141-6503, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
3257
NSN: 5315-00-141-6503
FSC: 5315
CAGE: 53655 — AVOX SYSTEMS INC DBA AVOX SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.153 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
hole_diameter0.526 INCHES NOMINAL IN
hardness_rating43.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
overall_diameter1.092 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5315-00-141-6503
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3257 · PanzerGlass ⚠ 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 OUTER RADIUS: 0.062 INCHES NOMINAL IN
PIN OVERALL DIAMETER: 0.1870 INCHES NOMINAL IN
PIN OVERALL LENGTH: 0.375 INCHES NOMINAL IN
SECOND END STYLE: SQUARE
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
MATERIAL: STEEL OVERALL
FIRST END STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END OUTER RADIUS0.062 INCHES NOMINAL IN
PIN OVERALL DIAMETER0.1870 INCHES NOMINAL IN
PIN OVERALL LENGTH0.375 INCHES NOMINAL IN
SECOND END STYLESQUARE
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
MATERIALSTEEL OVERALL
FIRST END STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
USAF325-7Interchangeable
interchangeable cross-reference
interchangeable
325-7Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEA2Interchangeable
interchangeable cross-reference
interchangeable
172-377Interchangeable
interchangeable cross-reference
interchangeable
FD28851Interchangeable
interchangeable cross-reference
interchangeable
055552-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3257?
3257 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK manufactured by PanzerGlass.
What parts can replace 3257?
There are 11 known substitutes for 3257: USAF325-7, 325-7, FFB571TYPEA2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3257?
3257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-141-6503. This indicates validated use in U.S. government and defense supply chains.
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