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12266945 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12266945: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, shank_length: 0.5700 INCHES NOMINAL IN, overall_length: 1.750 INCHES NOMINAL IN, shank_diameter: 0.1869 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN, undercut_width: 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN, first_end_style: CHAMFERED. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-070-1793, 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
12266945
NSN: 5315-01-070-1793
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
shank_length0.5700 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
shank_diameter0.1869 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
undercut_width0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
first_end_styleCHAMFERED
style_designatorUNDERCUT
shoulder_diameter0.1869 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
undercut_diameter0.147 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
first_end_locationTHREADED END
second_shank_length1.2800 INCHES NOMINAL IN
first_end_taper_angle45.0 DEGREES NOMINAL
NSN5315-01-070-1793
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12266945 · 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: 0.1869 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.1872 INCHES NOMINAL IN
•
UNDERCUT WIDTH: 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.0200 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.147 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
•
FIRST END LOCATION: THREADED END
•
FIRST END STYLE: CHAMFERED
•
SHANK LENGTH: 0.5700 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.1869 INCHES MINIMUM AND 0.1872 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.1872 INCHES NOMINAL IN
UNDERCUT WIDTH0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.0200 INCHES NOMINAL IN
UNDERCUT DIAMETER0.147 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
FIRST END LOCATIONTHREADED END
FIRST END STYLECHAMFERED
SHANK LENGTH0.5700 INCHES NOMINAL IN
STYLE DESIGNATORUNDERCUT
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA582 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
48145Reference document
Same NSN cross-reference
Reference document — Secondary reference
957B048145Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12266945?
12266945 is a PIN,SHOULDER,HEADLESS.
What parts can replace 12266945?
There are 2 known substitutes for 12266945: 48145, 957B048145. Substitute compatibility should be verified for your specific system.
What is the NSN for 12266945?
12266945 is cataloged in the U.S. Government catalog under NSN 5315-01-070-1793. 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.