The Spring,helical,compression, cataloged under National Stock Number 5360-00-424-2734, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Siemens Water Technologies Corp. Div Wallace & Tiernan Products. Government technical data includes 11 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-424-2734 |
| Primary Part Number | P11550 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Siemens Water Technologies Corp. Div Wallace & Tiernan Products |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.219 INCHES NOMINAL IN |
| Material Hardness Rating | 30.0 ROCKWELL C MINIMUM |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-S-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 3.250 INCHES NOMINAL IN |
| Inside Diameter | 1.031 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 1.219 INCHES NOMINAL IN |
| Coil Quantity | 9-1/2 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | NICKEL ALLOY 600 OVERALL |
| 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 |
|---|---|
| P11550 PRIMARY | Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA) |
NSN 5360-00-424-2734 is a Spring,helical,compression, manufactured by Siemens Water Technologies Corp. Div Wallace & Tiernan Products, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-424-2734 has 1 manufacturer part number on file: P11550 (Siemens Water Technologies Corp. Div Wallace & Tiernan Products).
1 possible match (shared part number, not a government interchangeability claim): 2815-00-430-1071. Verify interchangeability with system specifications before substitution.
Key specifications for P11550: Spring Free Outside Diameter: 1.219 INCHES NOMINAL IN; Material Hardness Rating: 30.0 ROCKWELL C MINIMUM; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Style Designator: CYLINDRICAL. 11 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.