The Nut,tube Coupling, cataloged under National Stock Number 4730-00-202-6348, 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 Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-202-6348 |
| Primary Part Number | 88118A |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Length to Shoulder | 0.486 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Thread Series | UNS |
| Thread Pitch Diameters | +0.5127 TO 0.5157 INCHES IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.500 INCHES IN |
| Nut Height | 0.688 INCHES NOMINAL IN |
| Nut Style | TUBE COUPLING |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 1213 OVERALL |
| Fabrication Method | MACHINED |
| Smallest Inside Diameter | 0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Nominal Tube Outside Diameter | 0.250 INCHES 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 |
|---|---|
| 88118A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 88118A | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 4730-00-202-6348 is a Nut,tube Coupling, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-202-6348 has 1 manufacturer part number on file: 88118A (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 88118A: Length to Shoulder: 0.486 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN; Width Across Flats: 0.750 INCHES NOMINAL IN; Thread Series: UNS; Thread Pitch Diameters: +0.5127 TO 0.5157 INCHES IN. 15 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.