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11576745 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11576745: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1030 AND STEEL COMP 1050 OVERALL, flat_height: 1.335 INCHES MINIMUM AND 1.350 INCHES MAXIMUM IN, overall_width: 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN, overall_height: 1.830 INCHES NOMINAL IN, overall_length: 2.220 INCHES MINIMUM AND 2.240 INCHES MAXIMUM IN, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-919-7903, 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
11576745
NSN: 5315-00-919-7903
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL COMP 1030 AND STEEL COMP 1050 OVERALL
flat_height1.335 INCHES MINIMUM AND 1.350 INCHES MAXIMUM IN
overall_width0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN
overall_height1.830 INCHES NOMINAL IN
overall_length2.220 INCHES MINIMUM AND 2.240 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
special_featuresABKW HEAD UNDERCUT 1.335 IN MIN 1.350 IN MAX FROM BOTTOM OF FLAT,0.100 IN W BY 0.096 IN MIN 0.131 IN MAX DEEP; 0.250 IN RADIUS OF ENDS IN
style_designatorPLAIN W/ROUND JOURNAL
first_flat_length0.890 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
key_chamfer_angle44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
surface_treatmentPHOSPHATE OVERALL
key_chamfer_length0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
NSN5315-00-919-7903
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11576745 · 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: 44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
•
FIRST FLAT LENGTH: 0.890 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: CHAMFERED
•
STYLE DESIGNATOR: PLAIN W/ROUND JOURNAL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.830 INCHES NOMINAL IN
KEY CHAMFER ANGLE44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
FIRST FLAT LENGTH0.890 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPECHAMFERED
STYLE DESIGNATORPLAIN W/ROUND JOURNAL
OVERALL LENGTH2.220 INCHES MINIMUM AND 2.240 INCHES MAXIMUM IN
OVERALL WIDTH0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN
KEY CHAMFER LENGTH0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
SPECIAL FEATURESABKW HEAD UNDERCUT 1.335 IN MIN 1.350 IN MAX FROM BOTTOM OF FLAT,0.100 IN W BY 0.096 IN MIN 0.131 IN MAX DEEP; 0.250 IN RADIUS OF ENDS 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 1
5315009197903Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11576745?
11576745 is a KEY,MACHINE.
What parts can replace 11576745?
There is 1 known substitute for 11576745: 5315009197903. Substitute compatibility should be verified for your specific system.
What is the NSN for 11576745?
11576745 is cataloged in the U.S. Government catalog under NSN 5315-00-919-7903. 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.