The Shaft,steam Seal, cataloged under National Stock Number 3040-01-068-6199, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Electric Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-068-6199 |
| Primary Part Number | 638A512 |
| Item Name | Shaft,steam Seal |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL QQ-S-633-FS; 3.688 IN. LG; 0.498 IN. LARGEST OD; BOTH ENDS 0.394 IN. OD 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 |
|---|---|
| 7378E65P67 | General Electric Company (USA) |
| A-3268167 | General Electric Company (USA) |
| 638A512 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 638A512 PIECE 1 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
| 638A512 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
NSN 3040-01-068-6199 is a Shaft,steam Seal, manufactured by General Electric Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-068-6199 has 3 manufacturer part numbers on file: 7378E65P67 (General Electric Company), A-3268167 (General Electric Company), 638A512 (General Electric Company).
Key specifications for 638A512: General Characteristics Item Description: STEEL QQ-S-633-FS; 3.688 IN. LG; 0.498 IN. LARGEST OD; BOTH ENDS 0.394 IN. OD 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.