The Cap,retention,pressure Plug, cataloged under National Stock Number 4730-01-598-1939, 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 United Equipment, Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 30 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-598-1939 |
| Primary Part Number | 4F51006-123A |
| Item Name | Cap,retention,pressure Plug |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | United Equipment, Inc |
| Status | ACTIVE |
| Overall Diameter | 0.250 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 4F51006-123A | United Equipment, Inc (USA) |
| 4F51006-123A | Williams Aerospace & Manufacturing Inc (USA) |
| 4F51006-123A | Tect Hypervelocity, Inc. (USA) |
| 4F51006-123A | Sphere Alliance Inc Dba Sphere Alliance (USA) |
| 4F51006-123A | Thaker Consulting & Manufacturing Co Corp Div Thaker Consulting & Mfg. Co. Corp. (USA) |
| 4F51006-123A | Yama Manufacturing Incorporated (USA) |
| 4F51006-123A | A Wiley & Associates Inc (USA) |
| 4F51006-123A | Blade Industrial Products Inc (USA) |
| 4F51006-123A | Triman Industries Inc (USA) |
| 4F51006-123A | Aero-Fab Sales Llc (USA) |
| 4F51006-123A | Lobo Ventures Ltd Dba Precision Mold & Tool-Government Division (USA) |
| 4F51006-123A | Kirkhill Inc Div Kirkhill Inc, Haskon Division (USA) |
| 4F51006-123A | Han-Boone International, Inc. Dba Fort Worth Gasket & Supply (USA) |
| 4F51006-123A | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc (USA) |
| 4F51006-123A | Jonal Laboratories Inc (USA) |
| 4F51006-123A | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| 4F51006-123A | A and M Aerospace, Inc. (USA) |
| 4F51006-123A | Jedtco Corp (USA) |
| 4F51006-123A | Tgc Enterprises, Inc. Dba Advanced Aerospace Metals (USA) |
| 4F51006-123A | Aero Components, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4F51006-123A | 5/9 Secondary reference Spares Dba Special Parts and Rubber Elastomeric Specification |
| 4F51006-123A | 5/2 Secondary reference U.S. Government activity |
| 4F51006-123A | 3/2 Design control — primary reference U.S. Government activity |
| 4F51006-123A | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-598-1939 is a Cap,retention,pressure Plug, manufactured by United Equipment, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-598-1939 has 30 manufacturer part numbers on file: 4F51006-123A (United Equipment, Inc), 4F51006-123A (Williams Aerospace & Manufacturing Inc), 4F51006-123A (Tect Hypervelocity, Inc.), 4F51006-123A (Sphere Alliance Inc Dba Sphere Alliance), 4F51006-123A (Thaker Consulting & Manufacturing Co Corp Div Thaker Consulting & Mfg. Co. Corp.) and 25 more.
Key specifications for 4F51006-123A: Overall Diameter: 0.250 INCHES NOMINAL IN; Overall Length: 0.750 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PLUG; End Item Identification: SEAL-PRESSURE,FORWARD RAMP. 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.