The Coupling,boss, cataloged under National Stock Number 4730-01-054-9300, 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 Pacific Scientific Energetic Materials Company (california Llc). Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-054-9300 |
| Primary Part Number | 817489-130 |
| Item Name | Coupling,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Pacific Scientific Energetic Materials Company (california Llc) |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541 CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Material Document and Classification | QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3B FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| 817489-130 PRIMARY | Pacific Scientific Energetic Materials Company (california Llc) (USA) |
| Reference | Meaning |
|---|---|
| 220-21031-130 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4730-01-054-9300 is a Coupling,boss, manufactured by Pacific Scientific Energetic Materials Company (california Llc), classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-054-9300 has 1 manufacturer part number on file: 817489-130 (Pacific Scientific Energetic Materials Company (california Llc)).
Key specifications for 817489-130: Surface Treatment Document and Classification: MIL-C-5541 CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A; Connection Style: GASKET SEAL (BOSS) FIRST END; Connection Type: THREADED INTERNAL BOSS FIRST END; Material Document and Classification: QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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.