The Spring,helical,compression, cataloged under National Stock Number 5360-00-433-9274, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc Western Hydraulics Div. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-433-9274 |
| Primary Part Number | D4-3550PC12 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Tactair Fluid Controls Inc Western Hydraulics Div |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.850 INCHES NOMINAL IN |
| Load Rating | 9.113 POUNDS NOMINAL LBS |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.540 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-423 FED SPEC ALL MATERIAL RESPONSES OR AMS 5688 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Spring Free Length | 2.000 INCHES NOMINAL IN |
| Spring Deflection Rate | 9.829 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.714 INCHES NOMINAL IN |
| Stock Diameter | 0.068 INCHES NOMINAL IN |
| Spring Length Under Load | 1.074 INCHES NOMINAL IN |
| Spring Solid Outside Diameter | 0.850 INCHES NOMINAL IN |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL COMP 302 OR STEEL COMP 304 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 |
|---|---|
| D4-3550PC12 | Tactair Fluid Controls Inc Western Hydraulics Div (USA) |
| Reference | Meaning |
|---|---|
| C0850-068-2000S | 3/9 Design control — primary reference U.S. Government activity |
| 3258540 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5360-00-433-9274 is a Spring,helical,compression, manufactured by Tactair Fluid Controls Inc Western Hydraulics Div, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-433-9274 has 1 manufacturer part number on file: D4-3550PC12 (Tactair Fluid Controls Inc Western Hydraulics Div).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-412-9407. Verify interchangeability with system specifications before substitution.
Key specifications for D4-3550PC12: Spring Free Outside Diameter: 0.850 INCHES NOMINAL IN; Load Rating: 9.113 POUNDS NOMINAL LBS; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.540 INCHES NOMINAL IN. 14 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.