The Seal,rubber,special, cataloged under National Stock Number 2040-01-348-5258, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-01-348-5258 |
| Primary Part Number | 5749397-003 |
| Item Name | Seal,rubber,special |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | Aef-Performance Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5749397-003 | Smr Acquisition Llc (USA) |
| 5749397-003 PRIMARY | Aef-Performance Llc (USA) |
| Reference | Meaning |
|---|---|
| 119-5749397-003 | C/1 Advisory reference — outside the item-of-supply concept Textron Systems Corp |
| 574397-001 | 5/9 Secondary reference Aef-Performance Llc |
| 5749397-001 | 5/9 Secondary reference Smr Acquisition Llc |
| 119-5749397 FIND 24 | 5/1 Secondary reference Naval Sea Systems Command |
| 5749397-003 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 5749397-001 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 2040-01-348-5258 is a Seal,rubber,special, manufactured by Aef-Performance Llc, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-01-348-5258 has 2 manufacturer part numbers on file: 5749397-003 (Smr Acquisition Llc), 5749397-003 (Aef-Performance Llc).
Key specifications for 5749397-003: End Item Identification: LATERAL STABILITY SEAL G.A.. 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.
NSN 2040-01-348-5258 has DEMIL Code Q. 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.