The Spring,helical,compression, cataloged under National Stock Number 5360-00-291-7591, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 19 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-291-7591 |
| Primary Part Number | B50731-08MEM |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Spring Free Outside Diameter | 1.125 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 3.250 INCHES NOMINAL IN |
| Spring Deflection Rate | 45.000 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.875 INCHES NOMINAL IN |
| Coil Quantity | 12-1/4 |
| Surface Treatment | ZINC OVERALL |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL 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 |
|---|---|
| B50731-08MEM PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AA17346-1PC17 | 5/9 Secondary reference Hammel Dahl Inc |
| D24544 | 5/9 Secondary reference Hammel Dahl Inc |
| AA17346PC17346-3 | 5/9 Secondary reference Hammel Dahl Inc |
| AA22050PC22051-35 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA17345PC17346-3 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA22051PC22051-35 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA19823PC19822-35 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| B50731-08MEM | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| D15982 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA19822PC35 | 5/9 Secondary reference Hammel Dahl Inc |
| AA17346PC17346-3 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA22050PC22051-35 | 5/9 Secondary reference Hammel Dahl Inc |
| AA17346-1PC17 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA19822PC35 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D15982 | 5/9 Secondary reference Hammel Dahl Inc |
| AA19823PC19822-35 | 5/9 Secondary reference Hammel Dahl Inc |
| AA22051PC22051-35 | 5/9 Secondary reference Hammel Dahl Inc |
| D24544 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA17345PC17346-3 | 5/9 Secondary reference Hammel Dahl Inc |
NSN 5360-00-291-7591 is a Spring,helical,compression, manufactured by Hunt Valve Company, Inc., classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-291-7591 has 1 manufacturer part number on file: B50731-08MEM (Hunt Valve Company, Inc.).
Key specifications for B50731-08MEM: Spring Free Outside Diameter: 1.125 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Style Designator: CYLINDRICAL; Spring Free Length: 3.250 INCHES NOMINAL IN. 10 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.