PartsTable
Technical Data Sheet
Download PDF

2593783 PIECE 626 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2593783 PIECE 626: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN, material: STEEL COMP 4140 OVERALL, overall_length: 1.031 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES OUTSIDE DIAMETER, undercut_width: 0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN, first_end_style: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-120-3389, 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
2593783 PIECE 626
NSN: 5315-01-120-3389
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
materialSTEEL COMP 4140 OVERALL
overall_length1.031 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES OUTSIDE DIAMETER
undercut_width0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
first_end_styleSQUARE
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
effective_length0.656 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN
style_designatorGROOVE
undercut_diameter0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
second_undercut_width0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
NSN5315-01-120-3389
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2593783 PIECE 626 · 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: 63.0 MICROINCHES OUTSIDE DIAMETER
•
UNDERCUT WIDTH: 0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER
UNDERCUT WIDTH0.069 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
FIRST END STYLESQUARE
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
OVERALL LENGTH1.031 INCHES MINIMUM AND 1.041 INCHES MAXIMUM 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: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 2593783 PIECE 626?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 2593783 PIECE 626?
2593783 PIECE 626 is a PIN,GROOVED,HEADLESS.
What is the NSN for 2593783 PIECE 626?
2593783 PIECE 626 is cataloged in the U.S. Government catalog under NSN 5315-01-120-3389. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 2593783 PIECE 626

✓ 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.