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204.855 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

204.855: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_pitch_in_millimeters: 1.25, part_name_assigned_by_controlling_agency: SCREW BONE CORTEX SELF-TAPPING 3.5 MM DIAMETER 55 MM TOTAL LENGTH (1) PER PACKAGE MM. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-298-1818, 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
204.855
NSN: 5315-00-298-1818
NIINs: 002981818, 015145059
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
special_features3.5 MM CORTEX SCREW, SELF-TAPPING, 55 MM TOTAL LENGTH, DIAMETER OF CORE 2.4 MM, DIAMETER OF HEAD 6.0 MM, DRILL BIT FOR THREADED HOLE 2.5 MM, GLIDING HOLE 3.5 MM MM
thread_pitch_in_millimeters1.25
part_name_assigned_by_controlling_agencySCREW BONE CORTEX SELF-TAPPING 3.5 MM DIAMETER 55 MM TOTAL LENGTH (1) PER PACKAGE MM
NSN5315-00-298-1818
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 204.855 · 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
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FIRST END STYLE: ROUND
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HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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PIN OVERALL DIAMETER: 0.10125 INCHES MINIMUM AND 0.10175 INCHES MAXIMUM IN
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PIN OVERALL LENGTH: 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
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SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
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MATERIAL: STEEL COMP 615 OVERALL
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FIRST END OUTER RADIUS: 0.010 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FIRST END STYLEROUND
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.10125 INCHES MINIMUM AND 0.10175 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL COMP 615 OVERALL
FIRST END OUTER RADIUS0.010 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
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 204.855?
204.855 is a PIN,STRAIGHT,HEADLESS.
What is the NSN for 204.855?
204.855 is cataloged in the U.S. Government catalog under NSN 5315-00-298-1818. This indicates validated use in U.S. government and defense supply chains.
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