The Connector,multiple,fluid Pressur, cataloged under National Stock Number 4730-00-684-0553, 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 Aerofit, Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-684-0553 |
| Primary Part Number | AFP318-4 |
| Item Name | Connector,multiple,fluid Pressur |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Aerofit, Llc |
| Status | ACTIVE |
| Bolt Hole Fluid Passage | PROVIDED |
| Seat Angle in Deg | 37.0 LOCATION NOT OTHERWISE SPECIFIED |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Fluid Conveyance Type and Size for Which Designed | 1/4 IN. OD TUBE IN |
| Connection Style | FLARED LOCATION NOT OTHERWISE SPECIFIED |
| Bolt Hole Flats Serrations | NOT PROVIDED |
| Style Designator | 1 FLUID CONNECTION |
| Fluid Connection Quantity | 1 LOCATION NOT OTHERWISE SPECIFIED |
| Bolt Hole Diameter | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size | 7/16 IN. -20 LOCATION NOT OTHERWISE SPECIFIED IN |
| Screw Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | ANODIZE |
| Thread Class | 3A LOCATION NOT OTHERWISE SPECIFIED A |
| Material | ALUMINUM ALLOY 2024 |
| Furnished Items | SEAT LOCATION NOT OTHERWISE SPECIFIED |
| Thickness | 0.673 INCHES MINIMUM AND 0.678 INCHES MAXIMUM 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 |
|---|---|
| AFP318-4 PRIMARY | Aerofit, Llc (USA) |
| Reference | Meaning |
|---|---|
| 105-01734 | 5/1 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| 105-01734 | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
| 3-01083 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 105-01734 | 5/9 Secondary reference Dana Corp Weatherhead Div |
NSN 4730-00-684-0553 is a Connector,multiple,fluid Pressur, manufactured by Aerofit, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-684-0553 has 1 manufacturer part number on file: AFP318-4 (Aerofit, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 6130-01-071-4199, 5330-01-409-0945. Verify interchangeability with system specifications before substitution.
Key specifications for AFP318-4: Bolt Hole Fluid Passage: PROVIDED; Seat Angle in Deg: 37.0 LOCATION NOT OTHERWISE SPECIFIED; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Fluid Conveyance Type and Size for Which Designed: 1/4 IN. OD TUBE IN. 17 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.