The Plug,pipe, cataloged under National Stock Number 4730-01-457-4875, 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 Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-457-4875 |
| Primary Part Number | QDH5PL12M |
| Item Name | Plug,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc |
| Status | ACTIVE |
| Drive End Style | RECESSED HEXAGON |
| Nominal Thread Size | 0.750 INCHES EXTERNAL IN |
| Thread Series Designator | NPT EXTERNAL |
| 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 |
|---|---|
| BB100NNS26 ITEM 38 | Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc (USA) |
| QDH5PL12M PRIMARY | Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc (USA) |
| Reference | Meaning |
|---|---|
| BB100NNS26 | D/9 Drawing number reference only Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc |
NSN 4730-01-457-4875 is a Plug,pipe, manufactured by Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-457-4875 has 2 manufacturer part numbers on file: BB100NNS26 ITEM 38 (Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc), QDH5PL12M (Air Systems International, Inc. (used in VA by: Air Systems, Inc.) Dba Air Systems International Inc).
4 possible matches (shared part number, not a government interchangeability claim): 6680-01-457-9002, 4820-01-458-0400, 4940-01-463-8561. Verify interchangeability with system specifications before substitution.
Key specifications for QDH5PL12M: Drive End Style: RECESSED HEXAGON; Nominal Thread Size: 0.750 INCHES EXTERNAL IN; Special Features: WEAPONS COD=LOS ANGELES CLASS SSN(688); End Item Identification: 4540-01-437-4226. 3 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.