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20-5212 — FUSE,CARTRIDGE

✓ Government record, cited
Hama · MRO · MRO_GENERAL
PRODUCT OVERVIEW

20-5212: FUSE,CARTRIDGE.

The FUSE,CARTRIDGE is a Hama industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN, key_height: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, circle_diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL, special_features: AIRCRAFT SUPPORT. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-441-4688, 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
MRO→ MRO_GENERAL→ 20-5212
NSN: 5315-00-441-4688
NIINs: 004414688, 016810087, 017222676
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 64547 — HONEYWELL INTERNATIONAL, INC DIV AEROSPACE-TUCSON (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
key_height0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
circle_diameter0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
special_featuresAIRCRAFT SUPPORT
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationNONSTANDARD SIZE
continuous_current_rating_in_amps2.0
part_name_assigned_by_controlling_agencyFUSE 250 VOLTS MIDGET
NSN5315-00-441-4688
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20-5212 · Hama ⚠ 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
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: ROUND BOTTOM
•
CIRCLE DIAMETER: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
KEY HEIGHT: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: NONSTANDARD SIZE
•
MATERIAL: STEEL OVERALL
•
THICKNESS: 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORROUND BOTTOM
CIRCLE DIAMETER0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
KEY HEIGHT0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONNONSTANDARD SIZE
MATERIALSTEEL OVERALL
THICKNESS0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
20521-2HCReference document
Same NSN cross-reference
Reference document — Secondary reference
7338619Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20-5212?
20-5212 is a FUSE,CARTRIDGE manufactured by Hama. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20-5212?
There are 2 known substitutes for 20-5212: 20521-2HC, 7338619. Substitute compatibility should be verified for your specific system.
What is the NSN for 20-5212?
20-5212 is cataloged in the U.S. Government catalog under NSN 5315-00-441-4688. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.