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76Z3520-1 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

76Z3520-1: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.062 INCHES NOMINAL IN, diameter: 0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN, material: STEEL COMP 4340 OVERALL, head_style: PAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION), chamfer_length: 0.030 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES OVERALL.

This part is cataloged in the U.S. Government catalog under NSN 5315-01-146-2145, 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
76Z3520-1
NSN: 5315-01-146-2145
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 14170 — HUGHES MISSILE SYSTEMS CO SAN DIEGO (USA)
SPECIFICATIONS
height0.062 INCHES NOMINAL IN
diameter0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN
materialSTEEL COMP 4340 OVERALL
head_stylePAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION)
chamfer_length0.030 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES OVERALL
style_designatorSTRAIGHT
pin_chamfer_angle45.0 DEGREES NOMINAL
pin_head_diameter0.375 INCHES NOMINAL IN
under_head_length6.550 INCHES NOMINAL IN
first_hole_diameter0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
hole_arrangement_styleONE END DRILLED
NSN5315-01-146-2145
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 76Z3520-1 · 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
•
SURFACE FINISH: 125.0 MICROINCHES OVERALL
•
CHAMFER LENGTH: 0.030 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 6.550 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
FIRST HOLE DIAMETER: 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES OVERALL
CHAMFER LENGTH0.030 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH6.550 INCHES NOMINAL IN
PIN CHAMFER ANGLE45.0 DEGREES NOMINAL
FIRST HOLE DIAMETER0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-8844,CL 1,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM 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 1
76Z3520-2Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 76Z3520-1?
76Z3520-1 is a PIN,STRAIGHT,HEADED.
What parts can replace 76Z3520-1?
There is 1 known substitute for 76Z3520-1: 76Z3520-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 76Z3520-1?
76Z3520-1 is cataloged in the U.S. Government catalog under NSN 5315-01-146-2145. 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.