The Spring,helical,compression, cataloged under National Stock Number 5360-00-377-3974, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-377-3974 |
| Primary Part Number | 2146188 |
| Item Name | Spring,helical,compression |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.408 INCHES NOMINAL IN |
| Load Rating | 1.875 POUNDS MINIMUM AND 2.000 POUNDS MAXIMUM LBS |
| End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| Spring Solid Length | 0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| Accommodated Rod Diameter | 0.335 INCHES MINIMUM IN |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 1.575 INCHES NOMINAL IN |
| Spring Deflection Rate | 2.780 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.342 INCHES NOMINAL IN |
| Spring Length Under Load | 0.880 INCHES NOMINAL IN |
| Coil Quantity | 13.5 |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Bore Diameter | 0.416 INCHES MINIMUM IN |
| Material | STEEL COMP 631 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2146188 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 2146188 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 2146188 | 5/9 Secondary reference Castle Industries Inc. of California Dba M.c. Gill |
| 2146188 | 5/9 Secondary reference U.S. Government activity |
| 2146188 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 5360PL0673797 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2146188 | 5/9 Secondary reference Hoffmann-Werke |
| 2146188 | 5/9 Secondary reference Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring |
NSN 5360-00-377-3974 is a Spring,helical,compression, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-377-3974 has 2 manufacturer part numbers on file: 2146188 (Rtx Corporation Div Pratt & Whitney), 2146188 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 2146188: Spring Free Outside Diameter: 0.408 INCHES NOMINAL IN; Load Rating: 1.875 POUNDS MINIMUM AND 2.000 POUNDS MAXIMUM LBS; End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Solid Length: 0.450 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN. 15 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.