The Insert Set,sound Isolation, cataloged under National Stock Number 4730-01-042-9111, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-042-9111 |
| Item Name | Insert Set,sound Isolation |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Component Quantity | 3 |
| Nonsupply Items and Quantities | PART 1,POSITIONING INSERT 1;PART 2,THRUST INSERT;PART 3,THRUST WASHER,3.000 IN.SIZE,80 DUROMETER1 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 |
|---|---|
| B-80-3 | 5/9 Secondary reference Oil States Industries, Inc. Div Special Products Div |
| MIL-I-24063B -5 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-I-24063 | 5/9 Secondary reference U.S. Government activity |
| MIL-I-24063B-56 | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-042-9111 is a Insert Set,sound Isolation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-251-1655, 5998-01-505-3801. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-042-9111: Component Quantity: 3; Nonsupply Items and Quantities: PART 1,POSITIONING INSERT 1;PART 2,THRUST INSERT;PART 3,THRUST WASHER,3.000 IN.SIZE,80 DUROMETER1 IN. 2 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.