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12281231 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12281231: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, shank_length: 0.563 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.310 INCHES NOMINAL IN, overall_length: 1.125 INCHES NOMINAL IN, shank_diameter: 0.124 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-105-4018, 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
12281231
NSN: 5315-01-105-4018
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
shank_length0.563 INCHES NOMINAL IN
thread_class2A A
thread_length0.310 INCHES NOMINAL IN
overall_length1.125 INCHES NOMINAL IN
shank_diameter0.124 INCHES NOMINAL IN
first_end_styleSQUARE
second_end_styleSQUARE
style_designatorSHOULDER
thread_directionRIGHT-HAND
shoulder_diameter0.155 INCHES NOMINAL IN
first_end_locationTHREADED END
NSN5315-01-105-4018
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12281231 · 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: 0.124 INCHES NOMINAL IN
•
FIRST END LOCATION: THREADED END
•
THREAD LENGTH: 0.310 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARE
•
SHANK LENGTH: 0.563 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.124 INCHES NOMINAL IN
FIRST END LOCATIONTHREADED END
THREAD LENGTH0.310 INCHES NOMINAL IN
FIRST END STYLESQUARE
SHANK LENGTH0.563 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
OVERALL LENGTH1.125 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.086 INCHES 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12281231?
12281231 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 12281231?
12281231 is cataloged in the U.S. Government catalog under NSN 5315-01-105-4018. 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.