The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-253-2874, 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 K & L Precision Plastics Inc Div K & L Prescison Plastics, Inc.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-253-2874 |
| Primary Part Number | 7M593-24-16 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | K & L Precision Plastics Inc Div K & L Prescison Plastics, Inc. |
| Status | ACTIVE |
| Length | 0.400 INCHES NOMINAL IN |
| Thread Provision | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR |
| Outside Diameter | 1.510 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON |
| Orifice Diameter | 1.000 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 |
|---|---|
| 7M593-24-16 | K & L Precision Plastics Inc Div K & L Prescison Plastics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7M593-24-16 | 5/9 Secondary reference The Boeing Company Div Defense |
| 7M593-24-16 | 3/9 Design control — primary reference Crane Co Dba Crane Polyflon Div Polyflon Company |
| 7M593 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-253-2874 is a Restrictor,fluid Flow, manufactured by K & L Precision Plastics Inc Div K & L Prescison Plastics, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-253-2874 has 1 manufacturer part number on file: 7M593-24-16 (K & L Precision Plastics Inc Div K & L Prescison Plastics, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-253-2875, 4730-01-287-1077. Verify interchangeability with system specifications before substitution.
Key specifications for 7M593-24-16: Length: 0.400 INCHES NOMINAL IN; Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR; Outside Diameter: 1.510 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.