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205423 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

205423: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.2486 INCHES MINIMUM AND 0.2491 INCHES MAXIMUM IN, material: STEEL COMP 8630 OVERALL, overall_length: 0.689 INCHES MINIMUM AND 0.699 INCHES MAXIMUM IN, surface_finish: 100.0 MICROINCHES OVERALL, undercut_width: 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN, first_end_style: OVAL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-196-5646, 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
205423
NSN: 5315-00-196-5646
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
diameter0.2486 INCHES MINIMUM AND 0.2491 INCHES MAXIMUM IN
materialSTEEL COMP 8630 OVERALL
overall_length0.689 INCHES MINIMUM AND 0.699 INCHES MAXIMUM IN
surface_finish100.0 MICROINCHES OVERALL
undercut_width0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
first_end_styleOVAL
effective_length0.525 INCHES MINIMUM AND 0.535 INCHES MAXIMUM IN
style_designatorGROOVE
undercut_diameter0.2285 INCHES MINIMUM AND 0.2315 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
first_end_outer_radius0.380 INCHES NOMINAL IN
material_document_and_classificationMIL-S-605,COND F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-196-5646
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 205423 · 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
•
SURFACE FINISH: 100.0 MICROINCHES OVERALL
•
UNDERCUT WIDTH: 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.2285 INCHES MINIMUM AND 0.2315 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END STYLE: OVAL
•
STYLE DESIGNATOR: GROOVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-605,COND F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.2486 INCHES MINIMUM AND 0.2491 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH100.0 MICROINCHES OVERALL
UNDERCUT WIDTH0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.2285 INCHES MINIMUM AND 0.2315 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
FIRST END STYLEOVAL
STYLE DESIGNATORGROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-605,COND F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.2486 INCHES MINIMUM AND 0.2491 INCHES MAXIMUM IN
OVERALL LENGTH0.689 INCHES MINIMUM AND 0.699 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
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 205423?
205423 is a PIN,GROOVED,HEADLESS.
What is the NSN for 205423?
205423 is cataloged in the U.S. Government catalog under NSN 5315-00-196-5646. 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.