The Insert,tube Fitting, cataloged under National Stock Number 4730-01-041-5271, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-041-5271 |
| Primary Part Number | 11642119 |
| Item Name | Insert,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Style Designator | PLAIN |
| Sleeve Outside Diameter | 0.174 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN |
| Tube Inside Diameter for Which Designed | 0.188 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | COPPER ALLOY 360 |
| Flange Outside Diameter | 0.230 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 |
|---|---|
| 11642119 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 4730010415271 | 5/9 Secondary reference E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| Q-TB-2733 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-041-5271 is a Insert,tube Fitting, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-041-5271 has 1 manufacturer part number on file: 11642119 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-045-1120. Verify interchangeability with system specifications before substitution.
Key specifications for 11642119: Style Designator: PLAIN; Sleeve Outside Diameter: 0.174 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN; Tube Inside Diameter for Which Designed: 0.188 INCHES NOMINAL IN; Casehardening Indicator: NOT CASEHARDENED. 6 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.