The Blade,skirt, cataloged under National Stock Number 2040-01-447-3272, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is Aef-Performance Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-447-3272 |
| Primary Part Number | 5749387-021 |
| Item Name | Blade,skirt |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Aef-Performance Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 5749387-021 PRIMARY | Aef-Performance Llc (USA) |
| 5749387-021 | Smr Acquisition Llc (USA) |
| Reference | Meaning |
|---|---|
| 119-5749387 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5749387-021 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 119-5749387REV H FIND NO. 16 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 2040-01-447-3272 is a Blade,skirt, manufactured by Aef-Performance Llc, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-447-3272 has 2 manufacturer part numbers on file: 5749387-021 (Aef-Performance Llc), 5749387-021 (Smr Acquisition Llc).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-447-3275. Verify interchangeability with system specifications before substitution.
Key specifications for 5749387-021: Overall Length: 52.250 INCHES NOMINAL IN; Overall Width: 29.310 INCHES NOMINAL IN; End Item Identification: SKIRT. 0 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.