The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-416-1641, 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 Stauff Corp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-416-1641 |
| Primary Part Number | SMK-20-9/16UNF-V-W3 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Stauff Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 CABLE AND 1 CAP |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Nominal Thread Size | 0.563 INCHES ALL ENDS IN |
| Thread Class | 3A ALL ENDS A |
| 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 |
|---|---|
| D-452-096 ITEM M | Pacific Powertech Llc (USA) |
| D-452-105 ITEM K | Pacific Powertech Llc (USA) |
| D-452-103 ITEM L | Pacific Powertech Llc (USA) |
| D-452-099 ITEM J | Pacific Powertech Llc (USA) |
| SMK-20-9/16UNF-V-W3 PRIMARY | Stauff Corp (USA) |
| Reference | Meaning |
|---|---|
| D-452-109 REV E | C/1 Advisory reference — outside the item-of-supply concept Pacific Powertech Llc |
| TCM20-9/16 UNF-V | 3/9 Design control — primary reference Stauff Corp |
| TMC20-9/16 UNF- | C/1 Advisory reference — outside the item-of-supply concept Stauff Corp |
NSN 4730-01-416-1641 is a Coupling Half,quick Disconnect, manufactured by Stauff Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-416-1641 has 5 manufacturer part numbers on file: D-452-096 ITEM M (Pacific Powertech Llc), D-452-105 ITEM K (Pacific Powertech Llc), D-452-103 ITEM L (Pacific Powertech Llc), D-452-099 ITEM J (Pacific Powertech Llc), SMK-20-9/16UNF-V-W3 (Stauff Corp).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-436-8380. Verify interchangeability with system specifications before substitution.
Key specifications for SMK-20-9/16UNF-V-W3: Furnished Items and Quantity: 1 CABLE AND 1 CAP; Connection Style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION. 9 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.