The Sleeve,compression,tube-Hose Fit, cataloged under National Stock Number 4730-00-435-9481, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-435-9481 |
| Primary Part Number | 2056912 |
| Item Name | Sleeve,compression,tube-Hose Fit |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Material Document and Classification | AMS 5553 ASSN STD SINGLE MATERIAL RESPONSE |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | NICKEL ALLOY 201 |
| Hose/tube Outside Diameter for Which Designed | 0.312 INCHES NOMINAL 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 |
|---|---|
| 2056912 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2162923 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2162930 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2056906 | Sae International Dba Sae International (USA) |
| 2163074 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST2001-05 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| AS3074-05 | Sae International Dba Sae International (USA) |
| 2057491 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| AS3075-05 | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 2056906 | 5/9 Secondary reference U.S. Government activity |
| AS3074-05 | 5/9 Secondary reference U.S. Government activity |
| AS3075-05 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-435-9481 is a Sleeve,compression,tube-Hose Fit, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-435-9481 has 9 manufacturer part numbers on file: 2056912 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2162923 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2162930 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2056906 (Sae International Dba Sae International), 2163074 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 4 more.
1 possible match (shared part number, not a government interchangeability claim): 5935-00-820-4025. Verify interchangeability with system specifications before substitution.
Key specifications for 2056912: Material Document and Classification: AMS 5553 ASSN STD SINGLE MATERIAL RESPONSE; Casehardening Indicator: NOT CASEHARDENED; Material: NICKEL ALLOY 201; Hose/tube Outside Diameter for Which Designed: 0.312 INCHES NOMINAL IN. 4 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.