The Chuck,air,inflating, cataloged under National Stock Number 4730-01-688-8993, 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 Haltec Corp. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-688-8993 |
| Primary Part Number | H-556 |
| Item Name | Chuck,air,inflating |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Haltec Corp |
| Status | ACTIVE |
| Design Type | SINGLE FOOT |
| Shank Type | THREADED |
| Holding Clip | NOT INCLUDED |
| Thread Location | EXTERNAL |
| Screw Thread Diameter | 0.125 INCHES NOMINAL IN |
| Screw Thread Series Designator | NPT |
| Item Type Category | ONE PIECE RIM |
| Special Deflator | NOT INCLUDED |
| 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 |
|---|---|
| H-556 PRIMARY | Haltec Corp (USA) |
NSN 4730-01-688-8993 is a Chuck,air,inflating, manufactured by Haltec Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-688-8993 has 1 manufacturer part number on file: H-556 (Haltec Corp).
Key specifications for H-556: Design Type: SINGLE FOOT; Shank Type: THREADED; Holding Clip: NOT INCLUDED; Thread Location: EXTERNAL. 8 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.