The Clapper,inlet, cataloged under National Stock Number 4210-01-590-9012, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4210-01-590-9012 |
| Item Name | Clapper,inlet |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6410 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4210-01-590-9012 is a Clapper,inlet, classified under FSC 4210, Firefighting Equipment. Status: active.
Key specifications for 4210-01-590-9012: Special Features: 4 X 2 1/2 X 2 1/2 DIMENSIONS; BRASS TWO WAY INLET; Part Name Assigned by Controlling Agency: DOUBLE CLAPPER TWO-WAY INLETS, BACK OUTLET. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.