The Spring,helical,compression, cataloged under National Stock Number 5360-00-291-1203, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 24 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 26 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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 | 5360-00-291-1203 |
| Primary Part Number | N451PC161 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.563 INCHES NOMINAL IN |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Style Designator | CYLINDRICAL |
| Spring Free Length | 1.375 INCHES NOMINAL IN |
| Inside Diameter | 0.0380 INCHES NOMINAL IN |
| Coil Quantity | 9 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | LEFT-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 |
|---|---|
| N451PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N409PC161 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| N475PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N334PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N657SH11PC107 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N484PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N511PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| F4689PC144 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| N439PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N574 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N367PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N607 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| F4689PC144 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N487PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N358PC161 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| N382PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N508PC161 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| N533 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N374PC161 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N452PC161 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| N513 | 5/9 Secondary reference U.S. Government activity |
| N565 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N598 | 5/9 Secondary reference U.S. Government activity |
| N657SH11PC107 | 5/9 Secondary reference U.S. Government activity |
| N566 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N534 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N524 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N657SH4PC107 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N657SH11PC107 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N513 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N452PC161 | 5/9 Secondary reference Ingersoll Rand Co |
| N514 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N358PC161 | 5/9 Secondary reference Ingersoll Rand Co |
| N359PC161 | 5/9 Secondary reference U.S. Government activity |
| F4688PC144 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N524 | 5/9 Secondary reference Ingersoll Rand Co |
| F4689PC144 | 5/9 Secondary reference Ingersoll Rand Co |
| N409PC161 | 5/9 Secondary reference U.S. Government activity |
| N484PC161 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N475PC161 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 5360-00-291-1203 is a Spring,helical,compression, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-291-1203 has 24 manufacturer part numbers on file: N451PC161 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N409PC161 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), N475PC161 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N334PC161 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N657SH11PC107 (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 19 more.
9 possible matches (shared part number, not a government interchangeability claim): 4730-00-336-9303, 5910-00-543-0305, 5935-00-636-6243. Verify interchangeability with system specifications before substitution.
Key specifications for N451PC161: Spring Free Outside Diameter: 0.563 INCHES NOMINAL IN; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Style Designator: CYLINDRICAL; Spring Free Length: 1.375 INCHES NOMINAL IN. 9 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.