The Wye,true,pipe, cataloged under National Stock Number 4730-01-138-1526, 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 Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 5 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-138-1526 |
| Primary Part Number | AA59326/20-9-B |
| Item Name | Wye,true,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Nominal Length | 4.812 INCHES ALL ENDS IN |
| Specification/standard Data | 96906-MS39352 GOVERNMENT STANDARD AND 81349-MIL-C-27487 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 2 CLASS AND 21 TYPE |
| Nominal Coupling Size Accommodated | 3.000 INCHES SECOND END IN |
| Nominal Coupling Size Accommodated | 4.000 INCHES FIRST END 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 |
|---|---|
| AA59326/20-9-B | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| A-A-59326/20 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| MIL-C-27487 | 5/9 Secondary reference U.S. Government activity |
| A-A-59326 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| MS39352-18 | 5/9 Secondary reference U.S. Government activity |
| AA59326XXI29 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 4730-01-138-1526 is a Wye,true,pipe, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-138-1526 has 1 manufacturer part number on file: AA59326/20-9-B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-235-3264. Verify interchangeability with system specifications before substitution.
Key specifications for AA59326/20-9-B: Nominal Length: 4.812 INCHES ALL ENDS IN; Specification/standard Data: 96906-MS39352 GOVERNMENT STANDARD AND 81349-MIL-C-27487 GOVERNMENT SPECIFICATION; Nondefinitive Spec/std Data: 2 CLASS AND 21 TYPE; Special Features: OVERALL LENGTH: 4.812 IN. MIN.; QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS; QUICK DISCONNECT NOMINAL SIZE: 4.000 IN. FIRST QUICK DISCONNECT END IN. 5 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.