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55213R1 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

55213R1: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, first_end_style: CHAMFERED, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL, surface_treatment: CADMIUM OVERALL, pin_overall_length: 0.530 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN, pin_overall_diameter: 0.09350 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-434-6831, 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
55213R1
NSN: 5315-00-434-6831
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL OVERALL
first_end_styleCHAMFERED
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
surface_treatmentCADMIUM OVERALL
pin_overall_length0.530 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
pin_overall_diameter0.09350 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN
first_end_taper_angle45.0 DEGREES NOMINAL
first_end_taper_length0.015 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-434-6831
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 55213R1 · 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 END TAPER LENGTH: 0.015 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
FIRST END STYLE: CHAMFERED
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.09350 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.530 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.015 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
FIRST END STYLECHAMFERED
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.09350 INCHES MINIMUM AND 0.09375 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.530 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
2208712Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
373877Reference document
Same NSN cross-reference
Reference document — Secondary reference
25830-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55213R1?
55213R1 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 55213R1?
There are 3 known substitutes for 55213R1: 2208712, 373877, 25830-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 55213R1?
55213R1 is cataloged in the U.S. Government catalog under NSN 5315-00-434-6831. 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.