The Cylinder,crosshead Assembly, cataloged under National Stock Number 3040-01-199-6628, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-199-6628 |
| Item Name | Cylinder,crosshead Assembly |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | FIRST PIECE 8 IN. DIA HUB,8.994 TO 8.998 OD;SECOND PIECE 4.501 TO 4.500 IN.BORE DIA,12 IN. OD,1.625 IN.FACE WIDTH;NICKEL ALUMINUM BRONZE MIL-B-21230 OVERALL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SSN637-518-2143703 | D/9 Drawing number reference only U.S. Government activity |
| SSN637-518-2143703 PIECE 4 | 5/2 Secondary reference U.S. Government activity |
| 77625-03X2 PIECE 4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-199-6628 is a Cylinder,crosshead Assembly, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3010-01-199-6629. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-199-6628: General Characteristics Item Description: FIRST PIECE 8 IN. DIA HUB,8.994 TO 8.998 OD;SECOND PIECE 4.501 TO 4.500 IN.BORE DIA,12 IN. OD,1.625 IN.FACE WIDTH;NICKEL ALUMINUM BRONZE MIL-B-21230 OVERALL 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.