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R31319 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R31319: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 0.810 INCHES NOMINAL IN, undercut_width: 0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, first_end_style: SQUARE, hardness_rating: 88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-239-0686, 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
R31319
NSN: 5315-01-239-0686
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 75160 — DEERE & CO (USA)
SPECIFICATIONS
diameter0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length0.810 INCHES NOMINAL IN
undercut_width0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
first_end_styleSQUARE
hardness_rating88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL
effective_length0.620 INCHES NOMINAL IN
style_designatorGROOVE
features_providedCASEHARDENED
undercut_diameter0.2110 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
second_undercut_width0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
NSN5315-01-239-0686
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R31319 · 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
•
UNDERCUT WIDTH: 0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.2110 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: JDM 1019 CAGEC 75160 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.2110 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
FIRST END STYLESQUARE
HARDNESS RATING88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL
STYLE DESIGNATORGROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONJDM 1019 CAGEC 75160 MFR REF SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
OVERALL LENGTH0.810 INCHES NOMINAL 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 R31319?
R31319 is a PIN,GROOVED,HEADLESS.
What is the NSN for R31319?
R31319 is cataloged in the U.S. Government catalog under NSN 5315-01-239-0686. 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.