The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-277-3322, 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 Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-277-3322 |
| Primary Part Number | S4823-3002260PC3-1/16INORIFICE |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 0.744 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR, HEX SHAPE |
| Thread Series | NPTF LOCATION NOT OTHERWISE SPECIFIED |
| Thread Length | 0.455 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Diameter | 0.535 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 1/4-18 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL |
| Orifice Diameter | 0.062 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 |
|---|---|
| S4823-3002260PC3-1/16INORIFICE PRIMARY | Naval Sea Systems Command (USA) |
| 1554-A 1/16IN ID PRIMARY | Sfc Valve Corporation (USA) |
| Reference | Meaning |
|---|---|
| S11340PIECE3-1- | C/1 Advisory reference — outside the item-of-supply concept Sfc Valve Corporation |
| S4823-3002260PC3 | 5/9 Secondary reference U.S. Government activity |
| 1554-A | D/9 Drawing number reference only Sfc Valve Corp |
| S4823-3002260PC | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 1554-A 1-16IN ID | 5/9 Secondary reference Sfc Valve Corp |
NSN 4730-00-277-3322 is a Restrictor,fluid Flow, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-277-3322 has 2 manufacturer part numbers on file: S4823-3002260PC3-1/16INORIFICE (Naval Sea Systems Command), 1554-A 1/16IN ID (Sfc Valve Corporation).
5 possible matches (shared part number, not a government interchangeability claim): 4730-00-277-3325, 4730-00-965-7711, 4730-01-232-4847. Verify interchangeability with system specifications before substitution.
Key specifications for S4823-3002260PC3-1/16INORIFICE: Length: 0.744 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR, HEX SHAPE; Thread Series: NPTF LOCATION NOT OTHERWISE SPECIFIED. 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.