The Spring,helical,torsion, cataloged under National Stock Number 5360-00-784-8993, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-784-8993 |
| Primary Part Number | 633A521-001 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division |
| Status | ACTIVE |
| End Style | STRAIGHT OFFSET BOTH ENDS |
| Style Designator | SINGLE TORSION RIGHT HAND |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Stock Diameter | 0.080 INCHES NOMINAL IN |
| Coil Quantity | 7-1/2 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| 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 |
|---|---|
| 633A521-001 | Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division (USA) |
| Reference | Meaning |
|---|---|
| 633A521-001 | 3/2 Design control — primary reference U.S. Government activity |
| 633A521 | 5/9 Secondary reference General Electric Company |
| 633A521 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-00-784-8993 is a Spring,helical,torsion, manufactured by Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-784-8993 has 1 manufacturer part number on file: 633A521-001 (Matthew Warren, Inc Dba Atlantic Spring Div Atlantic Spring Division).
Key specifications for 633A521-001: End Style: STRAIGHT OFFSET BOTH ENDS; Style Designator: SINGLE TORSION RIGHT HAND; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Stock Diameter: 0.080 INCHES NOMINAL IN. 7 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.