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299-4504-076A — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

299-4504-076A: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, overall_width: 0.250 INCHES NOMINAL IN, overall_length: 0.489 INCHES NOMINAL IN, style_designator: PLAIN, surface_treatment: PASSIVATE OVERALL, starting_edge_shape: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-388-4473, 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
299-4504-076A
NSN: 5315-01-388-4473
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19710 — MPC PRODUCTS CORPORATION DBA WOODWARD MPC, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
overall_width0.250 INCHES NOMINAL IN
overall_length0.489 INCHES NOMINAL IN
style_designatorPLAIN
surface_treatmentPASSIVATE OVERALL
starting_edge_shapeROUND
starting_edge_radius0.300 INCHES NOMINAL IN
material_document_and_classificationASTM A582 TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-388-4473
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 299-4504-076A · 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
•
STARTING EDGE SHAPE: ROUND
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STARTING EDGE RADIUS: 0.300 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 416 OVERALL
TECHNICAL CHARACTERISTICS
STARTING EDGE SHAPEROUND
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.489 INCHES NOMINAL IN
OVERALL WIDTH0.250 INCHES NOMINAL IN
STARTING EDGE RADIUS0.300 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 416 OVERALL
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 299-4504-076A?
299-4504-076A is a KEY,MACHINE.
What is the NSN for 299-4504-076A?
299-4504-076A is cataloged in the U.S. Government catalog under NSN 5315-01-388-4473. 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.