The Hose,air Breathing, cataloged under National Stock Number 4720-01-483-0787, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-483-0787 |
| Primary Part Number | HC-252CP |
| Item Name | Hose,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Measuring Method and Length | 22.000 INCHES NOMINAL OVERALL IN |
| Criticality Code Justification | ZZZY |
| Operating Pressure | 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| End Inside Width | 1.080 INCHES NOMINAL SECOND END IN |
| End Inside Width | 1.950 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.375 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL SECOND END IN |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| HC-252CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 6696345CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 6696345 | 3/1 Design control — primary reference Naval Sea Systems Command |
| HC-252 | 5/1 Secondary reference Herbert Cooper Co Inc |
NSN 4720-01-483-0787 is a Hose,air Breathing, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-483-0787 has 2 manufacturer part numbers on file: HC-252CP (Naval Inventory Control Point Mechanicsburg), 6696345CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for HC-252CP: Measuring Method and Length: 22.000 INCHES NOMINAL OVERALL IN; Criticality Code Justification: ZZZY; Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; End Inside Width: 1.080 INCHES NOMINAL SECOND END IN. 8 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.