The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-191-5139, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-191-5139 |
| Primary Part Number | AE98521G |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-7413 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| Mating End Identification | EATON CORP AIL DIV COUPLING HALF,QUICK DISCONNECT,PART NO. 412022-5 |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-A-225/6 T351AL FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8 T651 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Leg Length | 0.391 INCHES NOMINAL IN |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| AE98521G PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 412021-8 | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| Reference | Meaning |
|---|---|
| 412021 | 7/1 Vendor item drawing reference L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
NSN 4730-01-191-5139 is a Coupling Half,quick Disconnect, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-191-5139 has 2 manufacturer part numbers on file: AE98521G (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 412021-8 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
2 possible matches (shared part number, not a government interchangeability claim): 1680-01-317-4536, 5915-01-343-3236. Verify interchangeability with system specifications before substitution.
Key specifications for AE98521G: Surface Treatment Document and Classification: MIL-C-7413 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS; Mating End Identification: EATON CORP AIL DIV COUPLING HALF,QUICK DISCONNECT,PART NO. 412022-5; Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION. 14 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.