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PartsTable / COMPONENT / 221M1
221M1 ✓ 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 SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: RAISED HOOK BOTH ENDS, design_type: CLOSED, hook_radius: 0.250 INCHES NOMINAL BOTH ENDS IN, load_rating: 75.000 POUNDS MINIMUM AND 85.000 POUNDS MAXIMUM LBS, opening_width: 2.000 INCHES NOMINAL BOTH ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-205-4671, 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
221M1
NSN: 5360-00-205-4671
FSC: 5360
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleRAISED HOOK BOTH ENDS
design_typeCLOSED
hook_radius0.250 INCHES NOMINAL BOTH ENDS IN
load_rating75.000 POUNDS MINIMUM AND 85.000 POUNDS MAXIMUM LBS
opening_width2.000 INCHES NOMINAL BOTH ENDS IN
inside_diameter0.808 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length9.042 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_length_under_load8.750 INCHES NOMINAL IN
spring_free_outside_diameter1.000 INCHES NOMINAL IN
NSN5360-00-205-4671
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 221M1 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
HOOK RADIUS: 0.250 INCHES NOMINAL BOTH ENDS IN
•
MATERIAL: STEEL OVERALL
•
SPRING FREE OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
SPRING FREE LENGTH: 9.042 INCHES NOMINAL IN
•
COIL HELIX DIRECTION: RIGHT-HAND OR LEFT-HAND
•
END STYLE: RAISED HOOK BOTH ENDS
•
OPENING WIDTH: 2.000 INCHES NOMINAL BOTH ENDS IN
•
DESIGN TYPE: CLOSED
TECHNICAL CHARACTERISTICS (FLIS)
HOOK RADIUS0.250 INCHES NOMINAL BOTH ENDS IN
MATERIALSTEEL OVERALL
SPRING FREE OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
SPRING FREE LENGTH9.042 INCHES NOMINAL IN
COIL HELIX DIRECTIONRIGHT-HAND OR LEFT-HAND
END STYLERAISED HOOK BOTH ENDS
OPENING WIDTH2.000 INCHES NOMINAL BOTH ENDS IN
DESIGN TYPECLOSED
SPRING LENGTH UNDER LOAD8.750 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
483606Interchangeable
interchangeable cross-reference
interchangeable
482820Interchangeable
interchangeable cross-reference
interchangeable
13205E3951Interchangeable
interchangeable cross-reference
interchangeable
536213Interchangeable
interchangeable cross-reference
interchangeable
327-634Interchangeable
interchangeable cross-reference
interchangeable
83895 ITEM 23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221M1?
221M1 is a SPRING,HELICAL,EXTENSION.
What parts can replace 221M1?
There are 18 known substitutes for 221M1: 483606, 482820, 13205E3951 and 15 more. Substitute compatibility should be verified for your specific system.
Is 221M1 still available?
221M1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026