The Spring,helical,torsion, cataloged under National Stock Number 5360-00-753-3891, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-753-3891 |
| Primary Part Number | 16572.56-1 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.525 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | G-4252-M,CLASS A,GENERAL MOTORS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| End Style | REDUCED LOOP END BOTH ENDS |
| End Length | 0.500 INCHES NOMINAL BOTH ENDS IN |
| Center Section Width | 0.250 INCHES NOMINAL IN |
| Style Designator | DOUBLE TORSION, RIGHT AND LEFT HAND |
| Spring Free Length | 0.562 INCHES NOMINAL IN |
| Spring Deflection Rate | 2.375 POUNDS PER INCH NOMINAL LBS |
| Coil Axis to Center Section Distance | 0.500 INCHES NOMINAL IN |
| Inside Diameter | 0.437 INCHES NOMINAL IN |
| Coil Quantity | 7 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | LEFT-HAND |
| Center Style | SQUARE TYPE |
| Material | STEEL OVERALL |
| End Angular Relationship | END W/LH HELIX OF COIL ANGLED TO CENTER SECTION AND END W/RH HELIX OF COIL ANGLED TO CENTER SECTION |
| Hook Radius | 0.093 INCHES NOMINAL BOTH ENDS IN |
| Hook Leg Length | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 16572.56-1 PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 16572.56 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 16572-56 | 5/9 Secondary reference Ward Leonard Ct Llc |
NSN 5360-00-753-3891 is a Spring,helical,torsion, manufactured by Ward Leonard Ct Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-753-3891 has 1 manufacturer part number on file: 16572.56-1 (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 4470-01-364-3442. Verify interchangeability with system specifications before substitution.
Key specifications for 16572.56-1: Spring Free Outside Diameter: 0.525 INCHES NOMINAL IN; Surface Treatment Document and Classification: G-4252-M,CLASS A,GENERAL MOTORS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL; End Style: REDUCED LOOP END BOTH ENDS; End Length: 0.500 INCHES NOMINAL BOTH ENDS IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.