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5SP4YB3 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5SP4YB3: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN, diameter: 0.188 INCHES NOMINAL IN, material: STEEL OVERALL, head_style: FLAT, chamfer_length: 0.057 INCHES NOMINAL IN, hardness_rating: 248.0 BRINELL STANDARD MINIMUM AND 302.0 BRINELL STANDARD MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-135-9571, 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
5SP4YB3
NSN: 5315-00-135-9571
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: U1604 — MARTIN-BAKER AIRCRAFT COMPANY LIMITED (GBR)
SPECIFICATIONS
height0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
diameter0.188 INCHES NOMINAL IN
materialSTEEL OVERALL
head_styleFLAT
chamfer_length0.057 INCHES NOMINAL IN
hardness_rating248.0 BRINELL STANDARD MINIMUM AND 302.0 BRINELL STANDARD MAXIMUM OVERALL
style_designatorSTRAIGHT
pin_chamfer_angle15.0 DEGREES NOMINAL
pin_head_diameter0.303 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
under_head_length0.470 INCHES NOMINAL IN
first_hole_diameter0.064 INCHES NOMINAL IN
NSN5315-00-135-9571
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5SP4YB3 · 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: 0.057 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 0.470 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 15.0 DEGREES NOMINAL
•
FIRST HOLE DIAMETER: 0.064 INCHES NOMINAL IN
•
HARDNESS RATING: 248.0 BRINELL STANDARD MINIMUM AND 302.0 BRINELL STANDARD MAXIMUM OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.303 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.057 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH0.470 INCHES NOMINAL IN
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
FIRST HOLE DIAMETER0.064 INCHES NOMINAL IN
HARDNESS RATING248.0 BRINELL STANDARD MINIMUM AND 302.0 BRINELL STANDARD MAXIMUM OVERALL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.303 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONS105 FSCM 05901 MFR REF SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.188 INCHES NOMINAL 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
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5SP4YB3?
5SP4YB3 is a PIN,STRAIGHT,HEADED.
What is the NSN for 5SP4YB3?
5SP4YB3 is cataloged in the U.S. Government catalog under NSN 5315-00-135-9571. 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.