The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-092-5079, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Kidde-Fenwal, Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-092-5079 |
| Primary Part Number | 251821 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Kidde-Fenwal, Llc |
| Status | ACTIVE |
| Measuring Method and Length | 16.375 INCHES NOMINAL OVERALL IN |
| Connection Style | NUT ASSEMBLY WITH GASKET SECOND END |
| Connection Style | PLAIN OPTIONAL END FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | OUTER LAYER MOLDED RUBBER |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED INTERNAL HOSE SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Inside Diameter | 0.625 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Burst Test Pressure | 11000.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT FIRST END |
| Thread Series Designator | NPSH SECOND 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 |
|---|---|
| 251821 | L'hotellier SAS (FRA) |
| 251821 PRIMARY | Kidde-Fenwal, Llc (USA) |
| Reference | Meaning |
|---|---|
| L-70025 | D/9 Drawing number reference only Kidde-Fenwal, Llc |
| 251821 | 5/9 Secondary reference Kidde Graviner Ltd |
| 251821 | C/1 Advisory reference — outside the item-of-supply concept Kidde Technologies, Inc Div Kidde Aerospace and Defense |
| 252821 | C/1 Advisory reference — outside the item-of-supply concept Kidde-Fenwal, Llc |
NSN 4720-01-092-5079 is a Hose Assembly,nonmetallic, manufactured by Kidde-Fenwal, Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-092-5079 has 2 manufacturer part numbers on file: 251821 (L'hotellier SAS), 251821 (Kidde-Fenwal, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 6210-01-106-1249, 3010-01-525-4765. Verify interchangeability with system specifications before substitution.
Key specifications for 251821: Measuring Method and Length: 16.375 INCHES NOMINAL OVERALL IN; Connection Style: NUT ASSEMBLY WITH GASKET SECOND END; Connection Style: PLAIN OPTIONAL END FIRST END; End Connection Design: STRAIGHT FIRST END. 18 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.