The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-340-2281, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-340-2281 |
| Primary Part Number | AS188K08DN |
| 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 |
| Furnished Items and Quantity | 2 PREFORMED PACKING AND 8 SPRING |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | FLARELESS ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-A-225/6 T351 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Leg Length | 0.562 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES |
| Exterior Color | BLUE |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AS188K08DN PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| 656294 | D/9 Drawing number reference only U.S. Government activity |
| 656294-02 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-340-2281 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 4730-01-340-2281 has 1 manufacturer part number on file: AS188K08DN (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-341-2359, 4730-01-383-5909. Verify interchangeability with system specifications before substitution.
Key specifications for AS188K08DN: Furnished Items and Quantity: 2 PREFORMED PACKING AND 8 SPRING; Surface Treatment Document and Classification: MIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: FLARELESS ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. 18 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.
NSN 4730-01-340-2281 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.