The Mast,snorkel Induct, cataloged under National Stock Number 2040-01-497-6672, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-497-6672 |
| Primary Part Number | 342-7067317-A1 |
| Item Name | Mast,snorkel Induct |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 28.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 342-7067317-A1 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H643-6502-A1 | 3/2 Design control — primary reference U.S. Government activity |
| 342-7067317 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2040-01-497-6672 is a Mast,snorkel Induct, manufactured by Naval Sea Systems Command, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-497-6672 has 1 manufacturer part number on file: 342-7067317-A1 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 2040-01-497-6731, 5305-01-676-6323, 5305-01-676-6648. Verify interchangeability with system specifications before substitution.
Key specifications for 342-7067317-A1: Overall Diameter: 28.000 INCHES NOMINAL IN; Overall Length: 194.270 INCHES NOMINAL IN; Overall Width: 41.810 INCHES NOMINAL IN; Special Features: ASSEMBLY INCLUDES A2 FAIRING ASSY AND ALL RELATED COMPONENTS. CYLINDER MEASURES 173.13 IN LENGTH. 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.
NSN 2040-01-497-6672 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.