PartsTable TECHNICAL DATA SHEET
NSN 5360-00-421-5066Government record, cited

Spring, Helical, Compression5360-00-421-5066

NSN 5360-00-421-5066 · NIIN 004215066 · Part number 16571-305
Ward Leonard Ct Llc · FSC 5360 — Coil, Flat, Leaf, and Wire Springs · FSG 53 — Hardware and Abrasives · CAGE 63743
Government record, cited
NSN 5360-00-421-5066 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-421-5066. Manufacturer of record part number: 16571-305.
Also searched as  5360-00-421-5066 · 5360004215066 · NIIN 004215066 · 00-421-5066 · FSC 5360 Coil, Flat, Leaf, and Wire Springs · CAGE 63743 · 16571-305
Nearby stock numbers  ·
Features
  • Spring,helical,compression — FSC 5360
  • Spring Free Outside Diameter: 0.421 INCHES MAXIMUM IN
  • Load Rating: 1.281 POUNDS MINIMUM AND 1.531 POUNDS MAXIMUM LBS
  • End Style: SPRING END,SQUARED BOTH ENDS
  • Spring Solid Length: 1.000 INCHES MAXIMUM IN
  • Style Designator: CYLINDRICAL CONVEX END
  • Spring Free Length: 2.000 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN
  • Spring Deflection Rate: 0.280 POUNDS PER INCH NOMINAL LBS
Identification
  • NSN: 5360-00-421-5066
  • NIIN: 004215066
  • FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 16571-305
  • Manufacturer: Ward Leonard Ct Llc
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-421-5066, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-421-5066
Primary Part Number16571-305
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — Coil, Flat, Leaf, and Wire Springs
ManufacturerWard Leonard Ct Llc
StatusACTIVE
Spring Free Outside Diameter0.421 INCHES MAXIMUM IN
Load Rating1.281 POUNDS MINIMUM AND 1.531 POUNDS MAXIMUM LBS
End StyleSPRING END,SQUARED BOTH ENDS
Spring Solid Length1.000 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL CONVEX END
Spring Free Length2.000 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN
Spring Deflection Rate0.280 POUNDS PER INCH NOMINAL LBS
Inside Diameter0.235 INCHES NOMINAL IN
Spring Length Under Load1.250 INCHES NOMINAL IN
Spring Solid Outside Diameter0.421 INCHES MAXIMUM IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
MaterialSTEEL COMP 302 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
16571-305 PRIMARY Ward Leonard Ct Llc (USA)
No interchangeability data on file.
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
SPRING,HELICAL,COMPRESSION
5360-00-001-1945
5360-00-001-1945 · Item name not on file
5360-00-001-2010
SPRING,HELICAL,EXTENSION
5360-00-001-3865
5360-00-001-3865 · Item name not on file
5360-00-001-3950
5360-00-001-3950 · Item name not on file
5360-00-001-4650
SPRING,HELICAL,COMPRESSION
5360-00-001-4664
SPRING,CONSTANT TO
5360-00-001-4703
5360-00-001-4703 · Item name not on file

Frequently Asked Questions

What is NSN 5360-00-421-5066?

NSN 5360-00-421-5066 is a Spring,helical,compression, manufactured by Ward Leonard Ct Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.

What part numbers are listed for NSN 5360-00-421-5066?

NSN 5360-00-421-5066 has 1 manufacturer part number on file: 16571-305 (Ward Leonard Ct Llc).

What are the specifications of 16571-305?

Key specifications for 16571-305: Spring Free Outside Diameter: 0.421 INCHES MAXIMUM IN; Load Rating: 1.281 POUNDS MINIMUM AND 1.531 POUNDS MAXIMUM LBS; End Style: SPRING END,SQUARED BOTH ENDS; Spring Solid Length: 1.000 INCHES MAXIMUM IN. 12 specifications are documented in the U.S. Government catalog.

Is NSN 5360-00-421-5066 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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