PartsTable
Technical Data Sheet
Download PDF

2256641 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2256641: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, shank_length: 0.750 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.375 INCHES NOMINAL IN, overall_length: 1.125 INCHES NOMINAL IN, shank_diameter: 0.1876 INCHES MINIMUM AND 0.1878 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-245-8675, 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
2256641
NSN: 5315-00-245-8675
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
shank_length0.750 INCHES NOMINAL IN
thread_class2A A
thread_length0.375 INCHES NOMINAL IN
overall_length1.125 INCHES NOMINAL IN
shank_diameter0.1876 INCHES MINIMUM AND 0.1878 INCHES MAXIMUM IN
surface_finish125.0 MICROINCHES ALL OTHER SURFACES
first_end_styleCHAMFERED
hardness_rating28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
second_end_styleSLOTTED
style_designatorSHOULDER
thread_directionRIGHT-HAND
NSN5315-00-245-8675
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2256641 · 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
•
SHANK DIAMETER: 0.1876 INCHES MINIMUM AND 0.1878 INCHES MAXIMUM IN
•
SURFACE FINISH: 16.0 MICROINCHES LONG SHANK
•
FIRST END TAPER LENGTH: 0.062 INCHES NOMINAL IN
•
FIRST END LOCATION: SHANK END
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.1876 INCHES MINIMUM AND 0.1878 INCHES MAXIMUM IN
SURFACE FINISH16.0 MICROINCHES LONG SHANK
SURFACE FINISH125.0 MICROINCHES ALL OTHER SURFACES
FIRST END TAPER LENGTH0.062 INCHES NOMINAL IN
FIRST END LOCATIONSHANK END
THREAD LENGTH0.375 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
SHANK LENGTH0.750 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
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 2256641?
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 2256641?
2256641 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 2256641?
2256641 is cataloged in the U.S. Government catalog under NSN 5315-00-245-8675. 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 — 2256641

✓ 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.