The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-627-5880, 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 The Boeing Company Div Legacy Am&m. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-627-5880 |
| Primary Part Number | LD251-0001-4840 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Length | 0.032 INCHES NOMINAL IN |
| Thread Provision | UNTHREADED SINGLE PROVISION |
| Design Type | PLATE |
| Outside Diameter | 1.500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Orifice Diameter | 0.313 INCHES NOMINAL IN |
| 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 |
|---|---|
| LD251-0001-4840 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| LD251-0001 | D/9 Drawing number reference only The Boeing Company Div Legacy Am&m |
NSN 4730-01-627-5880 is a Restrictor,fluid Flow, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-627-5880 has 1 manufacturer part number on file: LD251-0001-4840 (The Boeing Company Div Legacy Am&m).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-627-5882, 4730-01-627-5884, 4730-01-627-6939. Verify interchangeability with system specifications before substitution.
Key specifications for LD251-0001-4840: Length: 0.032 INCHES NOMINAL IN; Thread Provision: UNTHREADED SINGLE PROVISION; Design Type: PLATE; Outside Diameter: 1.500 INCHES NOMINAL IN. 6 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.