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174779 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

174779: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include overall_width: 0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN, overall_height: 0.560 INCHES NOMINAL0.560 INCHES NOMINAL IN, overall_length: 0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN, special_features: 1 SLOT 0.218 IN. NOM WIDE,0.346 IN.

NOM LONG1 SLOT 0.218 IN. NOM WIDE,0.346 IN. NOM LONG IN, style_designator: PLAINPLAIN.

This part is cataloged in the U.S. Government catalog under NSN 5315-01-359-2434, 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
174779
NSN: 5315-01-359-2434
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 21877 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
overall_width0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN
overall_height0.560 INCHES NOMINAL0.560 INCHES NOMINAL IN
overall_length0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN
special_features1 SLOT 0.218 IN. NOM WIDE,0.346 IN. NOM LONG1 SLOT 0.218 IN. NOM WIDE,0.346 IN. NOM LONG IN
style_designatorPLAINPLAIN
NSN5315-01-359-2434
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 174779 · 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
•
STYLE DESIGNATOR: PLAINPLAIN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.560 INCHES NOMINAL0.560 INCHES NOMINAL IN
STYLE DESIGNATORPLAINPLAIN
OVERALL LENGTH0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN
OVERALL WIDTH0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN
SPECIAL FEATURES1 SLOT 0.218 IN. NOM WIDE,0.346 IN. NOM LONG1 SLOT 0.218 IN. NOM WIDE,0.346 IN. NOM LONG 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
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 174779?
174779 is a KEY,MACHINE.
What is the NSN for 174779?
174779 is cataloged in the U.S. Government catalog under NSN 5315-01-359-2434. 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.