The Thread Piece,union, cataloged under National Stock Number 4730-00-554-9871, 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 Honematic Machine Corporation Dba Pcx Aerosystems - Boylston Div Pcx Aerosystems - Boylston. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-554-9871 |
| Primary Part Number | A316215-3 |
| Item Name | Thread Piece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Honematic Machine Corporation Dba Pcx Aerosystems - Boylston Div Pcx Aerosystems - Boylston |
| Status | ACTIVE |
| Union End Thread Direction | RIGHT-HAND |
| Material Hardness Rating | 92.0 ROCKWELL B MINIMUM AND 98.0 ROCKWELL B MAXIMUM |
| End Connection Type | THREADED |
| Union End Thread Size | 1-3/4IN-12 IN |
| Seat Type | STRAIGHT FACE |
| Thread Direction | RIGHT-HAND |
| Thread Size | 1/2-14 |
| Screw Thread Series Designator | NPSM |
| Union End Screw Thread Series Designator | UN |
| Screw Thread Location | EXTERNAL |
| Material | STEEL COMP 4130 |
| Working Pressure and Service Type | 4000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| A316215-3 | Honematic Machine Corporation Dba Pcx Aerosystems - Boylston Div Pcx Aerosystems - Boylston (USA) |
| A316215-3 | Nassau Tool Works, Inc (USA) |
| A316215-3 | Bec Systems Llc Dba Bec Machine Products (USA) |
| A316215-3 | Krobach Mfg. Corp. Dba Krobach Manufacturing Corp (USA) |
| A316215-3 | Airtronics, Llc (USA) |
| A316215-3 | Pre-Mach Inc (USA) |
| A316215-3 | Penn State Tool & Die Corp (USA) |
| A316215-3 | Hamill Manufacturing Company Dba Hamill Manufacturing Co (USA) |
| A316215-3 | Duhadaway Tool & Die Shop Inc (USA) |
| A316215-3 | Ammcon Corp. (USA) |
| Reference | Meaning |
|---|---|
| A316215-3 | 5/9 Secondary reference Nuflo, Inc. |
| A316215-3 | 3/2 Design control — primary reference U.S. Government activity |
| A316215-3 | 5/9 Secondary reference Master Research & Manufacturing, Inc. Dba Master Research & Manufacturing Inc |
NSN 4730-00-554-9871 is a Thread Piece,union, manufactured by Honematic Machine Corporation Dba Pcx Aerosystems - Boylston Div Pcx Aerosystems - Boylston, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-554-9871 has 10 manufacturer part numbers on file: A316215-3 (Honematic Machine Corporation Dba Pcx Aerosystems - Boylston Div Pcx Aerosystems - Boylston), A316215-3 (Nassau Tool Works, Inc), A316215-3 (Bec Systems Llc Dba Bec Machine Products), A316215-3 (Krobach Mfg. Corp. Dba Krobach Manufacturing Corp), A316215-3 (Airtronics, Llc) and 5 more.
Key specifications for A316215-3: Union End Thread Direction: RIGHT-HAND; Material Hardness Rating: 92.0 ROCKWELL B MINIMUM AND 98.0 ROCKWELL B MAXIMUM; End Connection Type: THREADED; Union End Thread Size: 1-3/4IN-12 IN. 12 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 4730-00-554-9871 has DEMIL Code D. 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.