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Technical Data Sheet
PartsTable / MRO / 303345
303345 ✓ Verified by PartsTable
3M · MRO · MRO_GENERAL
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

<b>ARMR200 Series Anti-Reflection Matt Removable Display Protection Film</b><br>- Protects screen<br>- Reduces unwanted reflections and increases contrast for improved clarity and readability<br>- Multi-layer construction includes an anti-reflective element and an easy-to-clean surface that minimises fingerprints<br>- Robust enough to protect the underlying substrate, yet thin enough to have a minimum effect on touch screen sensitivity (not suitable however for capacitive touch displays)<br>- Easy to apply and remove with no adhesive residue This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-217-8059, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ 303345
NSN: 5310-00-217-8059
FSC: 5310
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
case_styleRECESSED
seal_width0.375 INCHES NOMINAL IN
temp_rating-65.0 CELSIUS AND 225.0 CELSIUS DEGC
hole_diameter0.114 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
overall_height0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
hardness_rating48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
outside_diameter1.003 INCHES NOMINAL IN
style_designatorSPRING TENSION
attachment_methodCEMENTED
features_providedDISPOSABLE AND STERILE
surface_treatmentPLASTIC CASE
NSN5310-00-217-8059
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 303345 · 3M ⚠ 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
•
STYLE DESIGNATOR: SPRING TENSION
•
HOLE DIAMETER: 0.114 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1095 OVERALL
•
MATERIAL THICKNESS: 0.012 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
•
HARDNESS RATING: 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSPRING TENSION
HOLE DIAMETER0.114 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1095 OVERALL
MATERIAL THICKNESS0.012 INCHES NOMINAL IN
OVERALL HEIGHT0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
HARDNESS RATING48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
30-3345Interchangeable
interchangeable cross-reference
interchangeable
60-3345Interchangeable
interchangeable cross-reference
interchangeable
5605Interchangeable
IBM External Fibre Channel cable, LC­LC, 5.0 m (16.4 ft)
interchangeable
3366Interchangeable
interchangeable cross-reference
interchangeable
303366Interchangeable
interchangeable cross-reference
interchangeable
815.7480Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 303345?
303345 is a BAFFLE AND THERMOST manufactured by 3M. It is classified as a MRO (MRO_GENERAL).
What parts can replace 303345?
There are 6 known substitutes for 303345: 30-3345, 60-3345, 5605 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 303345?
303345 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-217-8059. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026