The Spring,helical,torsion, cataloged under National Stock Number 5360-00-451-3133, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5360-00-451-3133 |
| Primary Part Number | 4400B2085 |
| 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 | 0.400 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-P-6889,TYPE 1 MIL SPEC ALL TREATMENT RESPONSES OVERALL |
| End Style | STRAIGHT BEND END (RIGHT) FIRST END |
| End Style | BENT CONED END SECOND END |
| Style Designator | SINGLE TORSION LEFT HAND |
| Inside Diameter | 0.340 INCHES NOMINAL IN |
| End Length From First Bend to Second Bend or End | 0.500 INCHES NOMINAL FIRST END IN |
| End Length From First Bend to Second Bend or End | 0.341 INCHES NOMINAL SECOND END IN |
| Coil Quantity | 2 |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| End Length From Second Bend to Third Bend or End | 0.250 INCHES NOMINAL OVERALL IN |
| 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 |
|---|---|
| 4400B2085 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4400B2085 | 5/9 Secondary reference Thomas Spring Co of Connecticut Inc |
| 4400B2085 | 5/9 Secondary reference U.S. Government activity |
NSN 5360-00-451-3133 is a Spring,helical,torsion, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-451-3133 has 1 manufacturer part number on file: 4400B2085 (Northrop Grumman Systems Corporation).
Key specifications for 4400B2085: Spring Free Outside Diameter: 0.400 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-P-6889,TYPE 1 MIL SPEC ALL TREATMENT RESPONSES OVERALL; End Style: STRAIGHT BEND END (RIGHT) FIRST END; End Style: BENT CONED END SECOND END. 13 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.