PartsTable
Technical Data Sheet
Download PDF

2528659 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2528659: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include diameter: 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, material: STEEL COMP 4140 OVERALL, surface_finish: 125.0 MICROINCHES OVERALL, hardness_rating: 39.0 ROCKWELL C NOMINAL OVERALL, features_provided: CASEHARDENED, surface_treatment: PHOSPHATE MANGANESE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-256-6711, 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
2528659
NSN: 5315-00-256-6711
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
materialSTEEL COMP 4140 OVERALL
surface_finish125.0 MICROINCHES OVERALL
hardness_rating39.0 ROCKWELL C NOMINAL OVERALL
features_providedCASEHARDENED
surface_treatmentPHOSPHATE MANGANESE OVERALL
under_head_length3.188 INCHES NOMINAL IN
NSN5315-00-256-6711
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2528659 · 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: 125.0 MICROINCHES OVERALL
•
UNDER HEAD LENGTH: 3.188 INCHES NOMINAL IN
•
HARDNESS RATING: 39.0 ROCKWELL C NOMINAL OVERALL
•
DIAMETER: 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
FEATURES PROVIDED: CASEHARDENED
•
SURFACE TREATMENT: PHOSPHATE MANGANESE OVERALL
•
MATERIAL: STEEL COMP 4140 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES OVERALL
UNDER HEAD LENGTH3.188 INCHES NOMINAL IN
HARDNESS RATING39.0 ROCKWELL C NOMINAL OVERALL
DIAMETER0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
SURFACE TREATMENTPHOSPHATE MANGANESE OVERALL
MATERIALSTEEL COMP 4140 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
Ready to buy 2528659?
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 2528659?
2528659 is a PIN,STRAIGHT,HEADED.
What is the NSN for 2528659?
2528659 is cataloged in the U.S. Government catalog under NSN 5315-00-256-6711. 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 — 2528659

✓ 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.