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11781506 — PIN,SHOULDER,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11781506: PIN,SHOULDER,HEADED.

The PIN,SHOULDER,HEADED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BALLBALL, style_designator: SHOULDER, first_step_length: 0.290 INCHES MINIMUM AND 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM0.310 INCHES MAXIMUM IN, under_head_length: 0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN, second_step_length: 0.490 INCHES MINIMUM AND 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-074-3982, 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
11781506
NSN: 5315-01-074-3982
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleBALLBALL
style_designatorSHOULDER
first_step_length0.290 INCHES MINIMUM AND 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM0.310 INCHES MAXIMUM IN
under_head_length0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN
second_step_length0.490 INCHES MINIMUM AND 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN
first_step_diameter0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN
second_step_diameter0.128 INCHES MINIMUM AND 0.128 INCHES MINIMUM AND 0.132 INCHES MAXIMUM0.132 INCHES MAXIMUM IN
NSN5315-01-074-3982
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11781506 · 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
•
FIRST STEP DIAMETER: 0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN
•
SECOND STEP LENGTH: 0.490 INCHES MINIMUM AND 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDER
•
HEAD STYLE: BALLBALL
•
SECOND STEP DIAMETER: 0.128 INCHES MINIMUM AND 0.128 INCHES MINIMUM AND 0.132 INCHES MAXIMUM0.132 INCHES MAXIMUM IN
•
FIRST STEP LENGTH: 0.290 INCHES MINIMUM AND 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM0.310 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FIRST STEP DIAMETER0.190 INCHES NOMINAL0.190 INCHES NOMINAL IN
UNDER HEAD LENGTH0.790 INCHES MINIMUM AND 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM0.810 INCHES MAXIMUM IN
SECOND STEP LENGTH0.490 INCHES MINIMUM AND 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDER
HEAD STYLEBALLBALL
SECOND STEP DIAMETER0.128 INCHES MINIMUM AND 0.128 INCHES MINIMUM AND 0.132 INCHES MAXIMUM0.132 INCHES MAXIMUM IN
FIRST STEP LENGTH0.290 INCHES MINIMUM AND 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM0.310 INCHES MAXIMUM IN
MATERIALSTEEL 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 1
8680071-1Reference 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 11781506?
11781506 is a PIN,SHOULDER,HEADED.
What parts can replace 11781506?
There is 1 known substitute for 11781506: 8680071-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 11781506?
11781506 is cataloged in the U.S. Government catalog under NSN 5315-01-074-3982. 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.