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12252331 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12252331: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1030 OVERALL, shank_length: 2.150 INCHES NOMINAL IN, overall_length: 2.900 INCHES NOMINAL IN, shank_diameter: 0.553 INCHES NOMINAL IN, first_end_style: CHAMFERED, hardness_rating: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-044-4526, 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
12252331
NSN: 5315-01-044-4526
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1030 OVERALL
shank_length2.150 INCHES NOMINAL IN
overall_length2.900 INCHES NOMINAL IN
shank_diameter0.553 INCHES NOMINAL IN
first_end_styleCHAMFERED
hardness_rating25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSHOULDER
shoulder_diameter0.934 INCHES NOMINAL IN
first_end_locationBOTH ENDS
first_hole_diameter0.307 INCHES NOMINAL IN
second_shank_length0.438 INCHES NOMINAL IN
first_end_taper_angle45.0 DEGREES NOMINAL
NSN5315-01-044-4526
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12252331 · 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: 0.553 INCHES NOMINAL IN
•
SECOND SHANK DIAMETER: 0.551 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.060 INCHES NOMINAL IN
•
FIRST END LOCATION: BOTH ENDS
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.307 INCHES NOMINAL IN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.553 INCHES NOMINAL IN
SECOND SHANK DIAMETER0.551 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.060 INCHES NOMINAL IN
FIRST END LOCATIONBOTH ENDS
HOLE ARRANGEMENT STYLEONE END DRILLED
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.307 INCHES NOMINAL IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
SHANK LENGTH2.150 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 1
5315010444526Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12252331?
12252331 is a PIN,SHOULDER,HEADLESS.
What parts can replace 12252331?
There is 1 known substitute for 12252331: 5315010444526. Substitute compatibility should be verified for your specific system.
What is the NSN for 12252331?
12252331 is cataloged in the U.S. Government catalog under NSN 5315-01-044-4526. 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.