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MDE323800-25 — PIN,SHOULDER,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MDE323800-25: PIN,SHOULDER,HEADED.

The PIN,SHOULDER,HEADED is a the manufacturer industrial component. Key specifications include height: 0.095 INCHES NOMINAL0.095 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024 OVERALL, head_style: FLATFLAT, first_end_style: SQUARESQUARE, style_designator: SHOULDER, first_step_length: 0.170 INCHES MINIMUM AND 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM0.190 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-009-2251, 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
MDE323800-25
NSN: 5315-01-009-2251
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
height0.095 INCHES NOMINAL0.095 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024 OVERALL
head_styleFLATFLAT
first_end_styleSQUARESQUARE
style_designatorSHOULDER
first_step_length0.170 INCHES MINIMUM AND 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM0.190 INCHES MAXIMUM IN
pin_head_diameter0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
under_head_length0.305 INCHES NOMINAL0.305 INCHES NOMINAL IN
second_step_length0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN
first_step_diameter0.220 INCHES MINIMUM AND 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM0.240 INCHES MAXIMUM IN
second_step_diameter0.1255 INCHES MINIMUM AND 0.1255 INCHES MINIMUM AND 0.1258 INCHES MAXIMUM0.1258 INCHES MAXIMUM IN
NSN5315-01-009-2251
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MDE323800-25 · 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: 0.220 INCHES MINIMUM AND 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM0.240 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 0.305 INCHES NOMINAL0.305 INCHES NOMINAL IN
•
FIRST END STYLE: SQUARESQUARE
•
SECOND STEP LENGTH: 0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDER
•
PIN HEAD DIAMETER: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,COND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HEAD STYLE: FLATFLAT
TECHNICAL CHARACTERISTICS
FIRST STEP DIAMETER0.220 INCHES MINIMUM AND 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM0.240 INCHES MAXIMUM IN
UNDER HEAD LENGTH0.305 INCHES NOMINAL0.305 INCHES NOMINAL IN
FIRST END STYLESQUARESQUARE
SECOND STEP LENGTH0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDER
PIN HEAD DIAMETER0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,COND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEFLATFLAT
SECOND STEP DIAMETER0.1255 INCHES MINIMUM AND 0.1255 INCHES MINIMUM AND 0.1258 INCHES MAXIMUM0.1258 INCHES MAXIMUM IN
HEIGHT0.095 INCHES NOMINAL0.095 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MDE323800-25?
MDE323800-25 is a PIN,SHOULDER,HEADED.
What is the NSN for MDE323800-25?
MDE323800-25 is cataloged in the U.S. Government catalog under NSN 5315-01-009-2251. 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.