The Tee,tube, cataloged under National Stock Number 4730-01-277-7541, 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 Northrop Grumman Systems Corporation. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-277-7541 |
| Primary Part Number | GT515AS06-04-04 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Connection Style | GROOVED (TUBE) ALL ENDS |
| Connection Type | UNTHREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | MIL-T-9047,TYPE3,COMPOSITION-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD END IN |
| Leg Length | 0.760 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.650 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.650 INCHES NOMINAL THIRD END IN |
| Material | TITANIUM ALLOY OVERALL |
| 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 |
|---|---|
| GT515AS06-04-04 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GT515AS | 7/1 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 3P00905-6-4-4 | 3/9 Design control — primary reference Te Connectivity Corporation Dba Raychem Product Division |
NSN 4730-01-277-7541 is a Tee,tube, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-277-7541 has 1 manufacturer part number on file: GT515AS06-04-04 (Northrop Grumman Systems Corporation).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-277-7542, 4730-01-278-0988, 4730-01-278-0990. Verify interchangeability with system specifications before substitution.
Key specifications for GT515AS06-04-04: Connection Style: GROOVED (TUBE) ALL ENDS; Connection Type: UNTHREADED EXTERNAL TUBE ALL ENDS; Material Document and Classification: MIL-T-9047,TYPE3,COMPOSITION-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN. 10 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.