The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-282-4167, 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 Dover Resources Inc Dba Opw Engineered Systems. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-282-4167 |
| Primary Part Number | 633A-SS10 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dover Resources Inc Dba Opw Engineered Systems |
| Status | ACTIVE |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Quick Disconnect Nominal Size | 1.445 INCHES ALL ENDS IN |
| Leg Length | 1.000 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | CAM-LOCKING ALL ENDS |
| Thread Series Designator | NPT 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 |
|---|---|
| 633A-SS10 PRIMARY | Dover Resources Inc Dba Opw Engineered Systems (USA) |
| 100-A-SS | Dvcc, Llc (USA) |
| B-2526-83 PRIMARY | Stinar, Llc (USA) |
| Reference | Meaning |
|---|---|
| 733A-SS10 | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 633A-1SST | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| B-2526 | D/9 Drawing number reference only Stinar, Llc |
| 633A-1SST | 3/2 Design control — primary reference U.S. Government activity |
| 633-A-1SS | 5/9 Secondary reference U.S. Government activity |
| 633-A-1SS | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
NSN 4730-01-282-4167 is a Coupling Half,quick Disconnect, manufactured by Dover Resources Inc Dba Opw Engineered Systems, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-282-4167 has 3 manufacturer part numbers on file: 633A-SS10 (Dover Resources Inc Dba Opw Engineered Systems), 100-A-SS (Dvcc, Llc), B-2526-83 (Stinar, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-464-3379. Verify interchangeability with system specifications before substitution.
Key specifications for 633A-SS10: Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Style Designator: MALE COUPLING HALF. 11 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.