The Spring,helical,compression, cataloged under National Stock Number 5360-00-340-0551, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Mid-America Aerotech, Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-340-0551 |
| Primary Part Number | 7783 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Mid-America Aerotech, Llc |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQP-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 6.000 POUNDS MINIMUM AND 7.500 POUNDS MAXIMUM LBS |
| End Style | SPRING END,SQUARED BOTH ENDS |
| Spring Solid Length | 0.164 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.425 INCHES NOMINAL IN |
| Inside Diameter | 0.346 INCHES MINIMUM AND 0.366 INCHES MAXIMUM IN |
| Spring Length Under Load | 0.205 INCHES NOMINAL IN |
| Coil Quantity | 4 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL UNS K08500 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 |
|---|---|
| 7783 | Mid-America Aerotech, Llc (USA) |
| Reference | Meaning |
|---|---|
| 7783 | 5/9 Secondary reference U.S. Government activity |
| 7783 | 5/9 Secondary reference Moog Inc Div Moog Inc., Space and Defense - Salt Lake City |
| 7783 | 3/9 Design control — primary reference E-Systems Inc Montek Div Fluid Controls Opns |
NSN 5360-00-340-0551 is a Spring,helical,compression, manufactured by Mid-America Aerotech, Llc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-340-0551 has 1 manufacturer part number on file: 7783 (Mid-America Aerotech, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 8465-01-517-6256, 5310-01-602-8792. Verify interchangeability with system specifications before substitution.
Key specifications for 7783: Spring Free Outside Diameter: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQP-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 6.000 POUNDS MINIMUM AND 7.500 POUNDS MAXIMUM LBS; End Style: SPRING END,SQUARED BOTH ENDS. 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.