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270-403 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

270-403: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.688 INCHES NOMINAL IN, material: STEEL OVERALL, overall_length: 2.531 INCHES NOMINAL IN, first_end_style: SQUARE, first_hole_diameter: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN, hole_arrangement_style: DRILLED THRU CENTER. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-092-8050, 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
270-403
NSN: 5315-01-092-8050
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 03705 — APEX TOOL GROUP, LLC (USA)
SPECIFICATIONS
diameter0.688 INCHES NOMINAL IN
materialSTEEL OVERALL
overall_length2.531 INCHES NOMINAL IN
first_end_styleSQUARE
first_hole_diameter0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
hole_arrangement_styleDRILLED THRU CENTER
NSN5315-01-092-8050
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 270-403 · 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
•
HOLE ARRANGEMENT STYLE: DRILLED THRU CENTER
•
FIRST END STYLE: SQUARE
•
FIRST HOLE DIAMETER: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
•
DIAMETER: 0.688 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
HOLE ARRANGEMENT STYLEDRILLED THRU CENTER
FIRST END STYLESQUARE
FIRST HOLE DIAMETER0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
DIAMETER0.688 INCHES NOMINAL IN
OVERALL LENGTH2.531 INCHES NOMINAL IN
MATERIALSTEEL 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 270-403?
270-403 is a PIN,GROOVED,HEADLESS.
What is the NSN for 270-403?
270-403 is cataloged in the U.S. Government catalog under NSN 5315-01-092-8050. 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.