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98381A550 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98381A550: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hardness_rating: 50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL, features_provided: CASEHARDENED, pin_overall_length: 2.000 INCHES NOMINAL IN, pin_overall_diameter: 0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-253-0136, 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
98381A550
NSN: 5315-01-253-0136
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hardness_rating50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
features_providedCASEHARDENED
pin_overall_length2.000 INCHES NOMINAL IN
pin_overall_diameter0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM IN
NSN5315-01-253-0136
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98381A550 · 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
•
HARDNESS RATING: 50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
•
PIN OVERALL DIAMETER: 0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 2.000 INCHES NOMINAL IN
•
FEATURES PROVIDED: CASEHARDENED
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
HARDNESS RATING50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL
PIN OVERALL DIAMETER0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM IN
PIN OVERALL LENGTH2.000 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 98381A550?
98381A550 is a PIN,STRAIGHT,HEADLESS.
What is the NSN for 98381A550?
98381A550 is cataloged in the U.S. Government catalog under NSN 5315-01-253-0136. 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.