The Hose,preformed, cataloged under National Stock Number 4720-01-390-8091, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-390-8091 |
| Primary Part Number | 12336831-9 |
| Item Name | Hose,preformed |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Style Designator | CENTER HUMP |
| Wall Thickness | 0.070 INCHES NOMINAL IN |
| Outside Diameter | 4.405 INCHES NOMINAL IN |
| Bulge Width | 0.250 INCHES NOMINAL IN |
| Inside Diameter | 4.405 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR OVERALL |
| Working Length | 2.750 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 |
|---|---|
| 55A031-9 | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (USA) |
| RP103-44-4.005 | Royal Engineered Composites, Inc. (USA) |
| AIR1110-0009 | Flexfab Llc (USA) |
| 12336831-9 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| AIR1110-004 | 5/9 Secondary reference Flexfab Llc |
| SF12336831-9 | 5/9 Secondary reference Royal Engineered Composites, Inc. |
| 12336831 | 7/1 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 4720013908091 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| SSA031-9 | 5/9 Secondary reference Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc |
NSN 4720-01-390-8091 is a Hose,preformed, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-390-8091 has 4 manufacturer part numbers on file: 55A031-9 (Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc), RP103-44-4.005 (Royal Engineered Composites, Inc.), AIR1110-0009 (Flexfab Llc), 12336831-9 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-549-0255, 4720-01-549-0263. Verify interchangeability with system specifications before substitution.
Key specifications for 12336831-9: Style Designator: CENTER HUMP; Wall Thickness: 0.070 INCHES NOMINAL IN; Outside Diameter: 4.405 INCHES NOMINAL IN; Bulge Width: 0.250 INCHES NOMINAL IN. 7 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.