The Plug, cataloged under National Stock Number 4730-00-774-4891, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-774-4891 |
| Primary Part Number | 7744891 |
| Item Name | Plug |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CARBON,QQ-S-633,FS1112,FS1020,FS1022,FS1117,OR FS1120,1.745 IN. DIA,0.470 IN.H,COUNTERSUNK HOLE IN CENTER,0.344 IN.DEEP; 1/4-28 UNF-3B THD SIZE; 1ST.STEP 1.735 IN.DIA,0.070 IN.THK; 2ND.STEP 1.610 IN.DIA;3RD.STEP 1.382 IN.DIA; 0.187 IN.LG; 4TH.STEP 1.615 IN.DIA; 0.096 IN.LG 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 |
|---|---|
| 7744891 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 7744891 | 3/9 Design control — primary reference Yorde Machine Products Co |
NSN 4730-00-774-4891 is a Plug, 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 4730-00-774-4891 has 1 manufacturer part number on file: 7744891 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7744891: General Characteristics Item Description: STEEL,CARBON,QQ-S-633,FS1112,FS1020,FS1022,FS1117,OR FS1120,1.745 IN. DIA,0.470 IN.H,COUNTERSUNK HOLE IN CENTER,0.344 IN.DEEP; 1/4-28 UNF-3B THD SIZE; 1ST.STEP 1.735 IN.DIA,0.070 IN.THK; 2ND.STEP 1.610 IN.DIA;3RD.STEP 1.382 IN.DIA; 0.187 IN.LG; 4TH.STEP 1.615 IN.DIA; 0.096 IN.LG IN. 1 specification is 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.