The Spring,helical,torsion, cataloged under National Stock Number 5360-00-008-1975, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-008-1975 |
| Primary Part Number | A51K56545-11 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.563 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | GSS7021,CAGE 26512 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Inside Diameter | 0.437 INCHES NOMINAL IN |
| Coil Quantity | 4-1/2 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 631 OVERALL |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| 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 |
|---|---|
| A51K56545-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51K56545-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51K56545-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5360-00-008-1975 is a Spring,helical,torsion, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-008-1975 has 1 manufacturer part number on file: A51K56545-11 (Northrop Grumman Systems Corporation).
Key specifications for A51K56545-11: Spring Free Outside Diameter: 0.563 INCHES NOMINAL IN; Surface Treatment Document and Classification: GSS7021,CAGE 26512 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SINGLE TORSION LEFT HAND; Material Document and Classification: AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 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.