The Spring,helical,extension, cataloged under National Stock Number 5360-01-374-1819, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Associated Spring Us, Llc Div Corry. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5360-01-374-1819 |
| Primary Part Number | 841940-1 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Associated Spring Us, Llc Div Corry |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.292 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 15.975 POUNDS MINIMUM AND 19.525 POUNDS MAXIMUM LBS |
| End Style | SHORT TWISTED HOOK BOTH ENDS |
| Design Type | MAINSPRING |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | ASTM A 313 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.000 INCHES NOMINAL IN |
| Spring Deflection Rate | 69.930 POUNDS PER INCH MINIMUM AND 85.470 POUNDS PER INCH MAXIMUM LBS |
| Coil to Hook Inside Length | 0.190 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.190 INCHES NOMINAL IN |
| Stock Diameter | 0.053 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN |
| Coil Quantity | 12 |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 OVERALL |
| End Angular Relationship | ENDS PARALLEL ONE TO OTHER |
| Hook Radius | 0.146 INCHES MINIMUM AND 0.154 INCHES MAXIMUM 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 |
|---|---|
| E0300-055-1000S | Associated Spring Us, Llc Div Corry (USA) |
| 841940-1 PRIMARY | Associated Spring Us, Llc Div Corry (USA) |
| Reference | Meaning |
|---|---|
| 841940-1 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 841940-1 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5360-01-374-1819 is a Spring,helical,extension, manufactured by Associated Spring Us, Llc Div Corry, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-01-374-1819 has 2 manufacturer part numbers on file: E0300-055-1000S (Associated Spring Us, Llc Div Corry), 841940-1 (Associated Spring Us, Llc Div Corry).
Key specifications for 841940-1: Spring Free Outside Diameter: 0.292 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 15.975 POUNDS MINIMUM AND 19.525 POUNDS MAXIMUM LBS; End Style: SHORT TWISTED HOOK BOTH ENDS. 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.