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4K1540 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4K1540: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.156 INCHES NOMINAL IN, diameter: 0.494 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN, material: STEEL OVERALL, head_style: FLAT CHAMFER, chamfer_length: 0.084 INCHES NOMINAL IN, special_features: HOLE COUNTERSUNK BOTH ENDS 0.250 IN. DIA 82 DEGREES IN.

This part is cataloged in the U.S. Government catalog under NSN 5315-00-438-5089, 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
4K1540
NSN: 5315-00-438-5089
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
height0.156 INCHES NOMINAL IN
diameter0.494 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
materialSTEEL OVERALL
head_styleFLAT CHAMFER
chamfer_length0.084 INCHES NOMINAL IN
special_featuresHOLE COUNTERSUNK BOTH ENDS 0.250 IN. DIA 82 DEGREES IN
style_designatorSTRAIGHT
features_providedCASEHARDENED
pin_chamfer_angle20.0 DEGREES MINIMUM AND 25.0 DEGREES MAXIMUM
pin_head_diameter0.625 INCHES NOMINAL IN
under_head_length1.560 INCHES NOMINAL IN
first_hole_diameter0.141 INCHES NOMINAL IN
NSN5315-00-438-5089
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4K1540 · 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
•
CHAMFER LENGTH: 0.084 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 1.560 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 20.0 DEGREES MINIMUM AND 25.0 DEGREES MAXIMUM
•
FIRST HOLE DIAMETER: 0.141 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 1E303 CF,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.084 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH1.560 INCHES NOMINAL IN
PIN CHAMFER ANGLE20.0 DEGREES MINIMUM AND 25.0 DEGREES MAXIMUM
FIRST HOLE DIAMETER0.141 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION1E303 CF,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.494 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
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 4K1540?
4K1540 is a PIN,STRAIGHT,HEADED.
What is the NSN for 4K1540?
4K1540 is cataloged in the U.S. Government catalog under NSN 5315-00-438-5089. This indicates validated use in U.S. government and defense supply chains.
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