The Spring Coupling Assembly, cataloged under National Stock Number 2990-00-508-6368, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Woodward, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-508-6368 |
| Primary Part Number | 031500 |
| Item Name | Spring Coupling Assembly |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Woodward, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF 1 @WASHER 0.6255 OD,0.389 ID,AND ATTACHING SPRING,@.035 DIA WIRE 2 TURNS AT 0.432 IN. MEAN DIA,WOUND @RIGHT HAND IN |
| 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 |
|---|---|
| 031500 PRIMARY | Woodward, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 031500 | 5/9 Secondary reference Woodward, Inc. Div Fuel Systems and Controls |
NSN 2990-00-508-6368 is a Spring Coupling Assembly, manufactured by Woodward, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-508-6368 has 1 manufacturer part number on file: 031500 (Woodward, Inc.).
Key specifications for 031500: General Characteristics Item Description: CONSISTS OF 1 @WASHER 0.6255 OD,0.389 ID,AND ATTACHING SPRING,@.035 DIA WIRE 2 TURNS AT 0.432 IN. MEAN DIA,WOUND @RIGHT HAND IN. 1 specification is 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.