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2301778 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2301778: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, overall_width: 0.1885 INCHES NOMINAL IN, overall_height: 0.1885 INCHES NOMINAL IN, overall_length: 1.875 INCHES NOMINAL IN, style_designator: PLAIN, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-901-5103, 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
2301778
NSN: 5315-00-901-5103
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
overall_width0.1885 INCHES NOMINAL IN
overall_height0.1885 INCHES NOMINAL IN
overall_length1.875 INCHES NOMINAL IN
style_designatorPLAIN
surface_treatmentANODIZE OVERALL
starting_edge_shapeSTRAIGHT
material_document_and_classificationQQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-901-5103
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2301778 · 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: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: ANODIZE OVERALL
•
MATERIAL: ALUMINUM ALLOY 7075 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.1885 INCHES NOMINAL IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.875 INCHES NOMINAL IN
OVERALL WIDTH0.1885 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
MATERIALALUMINUM ALLOY 7075 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 2301778?
2301778 is a KEY,MACHINE.
What is the NSN for 2301778?
2301778 is cataloged in the U.S. Government catalog under NSN 5315-00-901-5103. 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.