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25B5112 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

25B5112: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, shank_length: 0.625 INCHES NOMINAL IN, thread_class: 2B, thread_length: 1.250 INCHES NOMINAL IN, overall_length: 2.250 INCHES NOMINAL IN, shank_diameter: 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-191-2618, 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
25B5112
NSN: 5315-01-191-2618
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 04801 — L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
shank_length0.625 INCHES NOMINAL IN
thread_class2B
thread_length1.250 INCHES NOMINAL IN
overall_length2.250 INCHES NOMINAL IN
shank_diameter0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
first_end_styleCHAMFERED
second_end_styleROUND
special_featuresSHOULDER HAS TWO FLATS 180 DEGREES 0.880 IN. ACROSS IN
style_designatorSHOULDER
thread_directionRIGHT-HAND
shoulder_diameter1.125 INCHES NOMINAL IN
NSN5315-01-191-2618
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 25B5112 · 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: 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.500 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.062 INCHES NOMINAL IN
•
FIRST END LOCATION: THREADED END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.250 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
SHANK LENGTH: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.500 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.062 INCHES NOMINAL IN
FIRST END LOCATIONTHREADED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.250 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
SHANK LENGTH0.625 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE 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
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FREQUENTLY ASKED QUESTIONS
What is 25B5112?
25B5112 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 25B5112?
25B5112 is cataloged in the U.S. Government catalog under NSN 5315-01-191-2618. This indicates validated use in U.S. government and defense supply chains.
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