The Tailpiece,union, cataloged under National Stock Number 4730-01-088-4804, 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 Hydrasearch Company, Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-088-4804 |
| Primary Part Number | 8308-6-6-CG |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Union Outside Diameter | 0.531 INCHES NOMINAL IN |
| End Connection Type | BRAZED |
| Seat Type | STRAIGHT FACE |
| Tubing Outside Diameter | 0.376 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Material | STEEL COMP 316 |
| 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 |
|---|---|
| 8308-6-6-CG | Hydrasearch Company, Llc (USA) |
| MT308-6-CG | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| Reference | Meaning |
|---|---|
| H849R-06-SS316L | 3/2 Design control — primary reference U.S. Government activity |
| 3178205 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| H849R-6SS | 5/9 Secondary reference U.S. Government activity |
| 3178205-6 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 8308-6-316L | 5/9 Secondary reference Hydrasearch Company, Llc |
| H849R-6 | 5/9 Secondary reference U.S. Government activity |
| MT308-6-CG | 5/9 Secondary reference Northrop Grumman Space & Mission Systems Corp |
NSN 4730-01-088-4804 is a Tailpiece,union, manufactured by Hydrasearch Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-088-4804 has 2 manufacturer part numbers on file: 8308-6-6-CG (Hydrasearch Company, Llc), MT308-6-CG (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-121-2846, 4730-01-540-8403. Verify interchangeability with system specifications before substitution.
Key specifications for 8308-6-6-CG: Union Outside Diameter: 0.531 INCHES NOMINAL IN; End Connection Type: BRAZED; Overall Length: 0.440 INCHES NOMINAL IN; Seat Type: STRAIGHT FACE. 5 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.