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7353306 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7353306: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL, flat_height: 0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN, overall_width: 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN, overall_height: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN, overall_length: 2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-735-3306, 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
7353306
NSN: 5315-00-735-3306
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
flat_height0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
overall_width0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
overall_height0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
overall_length2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSTEPPED
first_flat_length0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
key_chamfer_angle42.0 DEGREES MINIMUM AND 48.0 DEGREES MAXIMUM
key_chamfer_length0.016 INCHES NOMINAL IN
second_flat_length0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
starting_edge_shapeCHAMFERED
NSN5315-00-735-3306
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7353306 · 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
•
KEY CHAMFER ANGLE: 42.0 DEGREES MINIMUM AND 48.0 DEGREES MAXIMUM
•
FIRST FLAT LENGTH: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: CHAMFERED
•
SECOND FLAT LENGTH: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STEPPED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
KEY CHAMFER ANGLE42.0 DEGREES MINIMUM AND 48.0 DEGREES MAXIMUM
FIRST FLAT LENGTH0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPECHAMFERED
SECOND FLAT LENGTH0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
STYLE DESIGNATORSTEPPED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN
OVERALL WIDTH0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
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 7353306?
7353306 is a KEY,MACHINE.
What is the NSN for 7353306?
7353306 is cataloged in the U.S. Government catalog under NSN 5315-00-735-3306. 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.