The Spring,helical,torsion, cataloged under National Stock Number 5360-00-177-6423, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 16 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.
| Parameter | Value |
|---|---|
| NSN | 5360-00-177-6423 |
| Primary Part Number | MBEU1961GRU5 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | DS301-14,CAGE U1604 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| End Style | OFFSET HINGE END, LEFT SIDE FIRST END |
| End Style | STRAIGHT BEND END (RIGHT) SECOND END |
| End Length | 0.728 INCHES MINIMUM AND 0.733 INCHES MAXIMUM SECOND END IN |
| End Length | 1.593 INCHES NOMINAL FIRST END IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Spring Free Length | 0.160 INCHES NOMINAL IN |
| Inside Diameter | 0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN |
| End Length From First Bend to Second Bend or End | 0.267 INCHES NOMINAL SECOND END IN |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| Hook Radius | 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM FIRST END IN |
| Hook Opening Width | 0.068 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST END 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 |
|---|---|
| MBEU1961GRU5 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5360-00-177-6423 is a Spring,helical,torsion, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-177-6423 has 1 manufacturer part number on file: MBEU1961GRU5 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU1961GRU5: Spring Free Outside Diameter: 0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN; Surface Treatment Document and Classification: DS301-14,CAGE U1604 MFR REF SINGLE TREATMENT RESPONSE OVERALL; End Style: OFFSET HINGE END, LEFT SIDE FIRST END; End Style: STRAIGHT BEND END (RIGHT) SECOND END. 16 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.