The Reducer,pipe, cataloged under National Stock Number 4730-00-953-0540, 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 Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-953-0540 |
| Primary Part Number | H15337 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 1.000 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| H15337 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| H15337 | 3/9 Design control — primary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| 15337 | 5/9 Secondary reference Howden Fluid Systems |
| 15337 | 5/9 Secondary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
NSN 4730-00-953-0540 is a Reducer,pipe, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-953-0540 has 1 manufacturer part number on file: H15337 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
4 possible matches (shared part number, not a government interchangeability claim): 5330-01-124-8653, 5998-01-370-8150, 4130-01-460-6829. Verify interchangeability with system specifications before substitution.
Key specifications for H15337: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.000 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Thread Size: 0.125 INCHES SECOND 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.