The Tee,pipe, cataloged under National Stock Number 4730-01-538-4796, 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 Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc. Government technical data includes 10 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. 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 | 4730-01-538-4796 |
| Primary Part Number | 403792 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL PIPE THIRD END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END BULKHEAD |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Nominal Thread Size | 1.312 INCHES THIRD END IN |
| Nominal Thread Size | 1.312 INCHES SECOND END BULKHEAD IN |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF THIRD END |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF SECOND END BULKHEAD |
| 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 |
|---|---|
| 2704-LN-16 | Tompkins Industries Inc (USA) |
| 403792 PRIMARY | Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc (USA) |
NSN 4730-01-538-4796 is a Tee,pipe, manufactured by Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-538-4796 has 2 manufacturer part numbers on file: 2704-LN-16 (Tompkins Industries Inc), 403792 (Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc).
1 possible match (shared part number, not a government interchangeability claim): 6510-01-625-4785. Verify interchangeability with system specifications before substitution.
Key specifications for 403792: Connection Type: THREADED EXTERNAL PIPE THIRD END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Connection Type: THREADED EXTERNAL PIPE SECOND END BULKHEAD; Nominal Thread Size: 1.312 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.