PartsTable
Technical Data Sheet
31-73 ✓ 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

3M™ Paint and Rust Stripper removes rust, scale and old paint from metal with exceptional ease. This slightly flexible disc uniformly grinds or sands over contoured or curved surfaces for greater consistency. It attaches easily to a standard electric drill - the drill does much of the work, saving effort and boosting efficiency.

Paint and rust strippers come in both heavy and light duty options.<br><br><b>Strip Away Old Paint and Corrosion with Ease</b><br>3M™ Paint and Rust Stripper works quicker, lasts longer and cuts faster than conventional sandpaper to strip away corrosion, scale and old finishes. Made from durable, non-woven synthetic material, our rust and paint remover makes a tough job faster and easier — it cleans away surface corrosion to reveal the surface below. Silicon carbide abrasives fracture easily to expose sharp edges for aggressive grinding that speeds removal of rust and scale.

The paint and rust stripper may be used on fiberboard, plastics, wood, clear coat, fibe This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-070-6672, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL 31-73
NSN: 5310-00-070-6672
FSC: 5310
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
end_item_identificationAN/TGC-14
NSN5310-00-070-6672
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31-73 · 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
OUTSIDE DIAMETER: 0.439 INCHES NOMINAL IN
HOLE DIAMETER: 0.219 INCHES NOMINAL IN
RECESS ANGLE: 45.0 DEGREES NOMINAL
MATERIAL THICKNESS: 0.250 INCHES NOMINAL IN
STYLE DESIGNATOR: RECESSED
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
RECESS DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.439 INCHES NOMINAL IN
HOLE DIAMETER0.219 INCHES NOMINAL IN
RECESS ANGLE45.0 DEGREES NOMINAL
MATERIAL THICKNESS0.250 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
RECESS DIAMETER0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
3M1583Interchangeable
interchangeable cross-reference
interchangeable
8304735Interchangeable
interchangeable cross-reference
interchangeable
35349Interchangeable
interchangeable cross-reference
interchangeable
C743586-8SUB5Interchangeable
interchangeable cross-reference
interchangeable
3173Interchangeable
interchangeable cross-reference
interchangeable
72368RInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31-73?
31-73 is a RELAY,ELECTROMAGNETIC manufactured by 3M. It is classified as a MRO (MRO_GENERAL).
What parts can replace 31-73?
There are 13 known substitutes for 31-73: 3M1583, 8304735, 35349 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-73?
31-73 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-070-6672. This indicates validated use in U.S. government and defense supply chains.
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