The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-359-2566, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is American Boa Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-359-2566 |
| Primary Part Number | 10IN FSL-3025E-9.75-M5 |
| Item Name | Expansion Joint,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | American Boa Inc |
| Status | ACTIVE |
| End Connection Type | FLANGED |
| 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 |
|---|---|
| 10IN FSL-3025E-9.75-M5 PRIMARY | American Boa Inc (USA) |
| Reference | Meaning |
|---|---|
| 342-6233827 PC.NO.EJ-10 | 5/9 Secondary reference Naval Sea Systems Command |
| 6233827 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-359-2566 is a Expansion Joint,pipe, manufactured by American Boa Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-359-2566 has 1 manufacturer part number on file: 10IN FSL-3025E-9.75-M5 (American Boa Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-359-2567. Verify interchangeability with system specifications before substitution.
Key specifications for 10IN FSL-3025E-9.75-M5: End Connection Type: FLANGED; Special Features: RAISED FACE FLANGE. 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.