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PartsTable / COMPONENT / H 121
H 121 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, length: 2.000 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: CARBIDE, body_style: PLAIN, SOLID, body_width: 3.062 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-486-8143, 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
H 121
NSN: 3020-00-486-8143
FSC: 3020
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
shapeSTRAIGHT
length2.000 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialCARBIDE
body_stylePLAIN, SOLID
body_width3.062 INCHES NOMINAL IN
bore_stylePLAIN BOTH ENDS
tooth_formSTANDARD
body_height3.875 INCHES NOMINAL IN
body_length3.562 INCHES NOMINAL IN
nominal_width0.500 INCHES IN
inclosure_typeHERMETICALLY SEALED
NSN3020-00-486-8143
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,FIXED,COMPOSITION TITLE COMPONENT PN H 121 MFR RESISTOR,FIXED,COMPOSI
KEY FEATURES
•
HUB NOMINAL DIAMETER: 0.312 INCHES FIRST END IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL OUTSIDE DIAMETER: 0.479 INCHES IN
•
PRECISION CLASSIFICATION: QUALITY NUMBER 10
•
CLAMPING SURFACE NOMINAL LENGTH: 0.250 INCHES FIRST END IN
•
BORE STYLE: PLAIN BOTH ENDS
•
MATERIAL: STEEL COMP 303 OVERALL
•
PRESSURE ANGLE: 20.0000 DEGREES
TECHNICAL CHARACTERISTICS (FLIS)
HUB NOMINAL DIAMETER0.312 INCHES FIRST END IN
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL OUTSIDE DIAMETER0.479 INCHES IN
PRECISION CLASSIFICATIONQUALITY NUMBER 10
CLAMPING SURFACE NOMINAL LENGTH0.250 INCHES FIRST END IN
BORE STYLEPLAIN BOTH ENDS
MATERIALSTEEL COMP 303 OVERALL
PRESSURE ANGLE20.0000 DEGREES
TOOTH FORMSTANDARD
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.281 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
4L540Interchangeable
interchangeable cross-reference
interchangeable
27-1240PInterchangeable
interchangeable cross-reference
interchangeable
520Interchangeable
interchangeable cross-reference
interchangeable
H121Interchangeable
interchangeable cross-reference
interchangeable
826363-00Interchangeable
interchangeable cross-reference
interchangeable
HI21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H 121?
H 121 is a RESISTOR,FIXED,COMPOSITION.
What parts can replace H 121?
There are 15 known substitutes for H 121: 4L540, 27-1240P, 520 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H 121?
H 121 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-486-8143. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026