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777.21.027 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

777.21.027: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,GROUND BOTH ENDS, style_designator: CYLINDRICAL, spring_free_length: 1.250 INCHES NOMINAL IN, coil_helix_direction: RIGHT-HAND, end_item_identification: LW155 HOWITZER. This part is cataloged in the U.S.

Government catalog under NSN 5360-01-525-5533, 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
777.21.027
NSN: 5360-01-525-5533
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: A3QPJ
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,GROUND BOTH ENDS
style_designatorCYLINDRICAL
spring_free_length1.250 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
end_item_identificationLW155 HOWITZER
spring_free_outside_diameter0.720 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencySPRING
NSN5360-01-525-5533
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 777.21.027 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.720 INCHES NOMINAL IN
•
END STYLE: SPRING END,GROUND BOTH ENDS
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 1.250 INCHES NOMINAL IN
•
COIL HELIX DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.720 INCHES NOMINAL IN
END STYLESPRING END,GROUND BOTH ENDS
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH1.250 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSPRING
END ITEM IDENTIFICATIONLW155 HOWITZER
COIL HELIX DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5360 — Coil, Flat, Leaf, and Wire Springs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5360-00-001-1842 5360-00-001-1945 5360-00-001-2010 5360-00-001-3865 5360-00-001-3950 5360-00-001-4650 5360-00-001-4664 5360-00-001-4703
SUBSTITUTES & CROSS-REFERENCES 3
LC-067J-4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
11581529Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
E1211130Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 777.21.027?
777.21.027 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 777.21.027?
There are 3 known substitutes for 777.21.027: LC-067J-4, 11581529, E1211130. Substitute compatibility should be verified for your specific system.
What is the NSN for 777.21.027?
777.21.027 is cataloged in the U.S. Government catalog under NSN 5360-01-525-5533. 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.