The Flange,pipe, cataloged under National Stock Number 4730-00-752-1861, 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 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-752-1861 |
| Primary Part Number | 7521861 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Treatment Document and Classification | TT-P-664 FED SPEC SINGLE TREATMENT RESPONSE |
| Surface Treatment | PRIMER |
| 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 |
|---|---|
| 7521861 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| A-3270-J-36 | Meritor Industrial Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 852D1 | 5/9 Secondary reference Diamond Reo Truck Co |
| 913774 | 5/9 Secondary reference Sasco Inc Canadian Div |
| A3270Q4643 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| A-3270-J-36 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| 2520007521861 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 4730-00-752-1861 is a Flange,pipe, 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 4730-00-752-1861 has 2 manufacturer part numbers on file: 7521861 (U S Army Tank Automotive Command Amsta-Im-Mm), A-3270-J-36 (Meritor Industrial Products, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 2520-00-862-7090, 2520-01-218-7489. Verify interchangeability with system specifications before substitution.
Key specifications for 7521861: Surface Treatment Document and Classification: TT-P-664 FED SPEC SINGLE TREATMENT RESPONSE; Surface Treatment: PRIMER. 2 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.