The Spring,helical,extension, cataloged under National Stock Number 5360-00-790-2688, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Coffin Turbo Pump Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-790-2688 |
| Primary Part Number | 3557 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — No Item Name Available |
| Manufacturer | Coffin Turbo Pump Inc |
| Status | ACTIVE |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Coil Quantity | 16 |
| Opening Width | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Design Type | OPEN |
| Coil Helix Direction | LEFT-HAND |
| Coil to Hook Inside Length | 0.500 INCHES NOMINAL BOTH ENDS IN |
| Hook Radius | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Spring Free Length | 2.188 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material | STEEL OVERALL |
| Spring Free Outside Diameter | 0.625 INCHES NOMINAL IN |
| End Style | RAISED HOOK BOTH ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5360-00-790-2688 is a Spring,helical,extension, manufactured by Coffin Turbo Pump Inc, classified under FSC 5360 (No Item Name Available). Status: active.
NSN 5360-00-790-2688 has 2 cross-referenced part numbers: 3557 (Coffin Turbo Pump Inc), 3557 (Fmc Corp).
There are 6 known substitutes for 5360-00-790-2688: 5905-00-447-9204, 2530-00-594-5188, 3120-00-709-7424 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3557: Inside Diameter: 0.500 INCHES NOMINAL IN; Coil Quantity: 16; Opening Width: 0.250 INCHES NOMINAL BOTH ENDS IN; Design Type: OPEN. 12 total characteristics are documented in the Federal Logistics Information System.