The Block,guide, cataloged under National Stock Number 4210-01-040-8623, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4210-01-040-8623 |
| Primary Part Number | 1FC673 |
| Item Name | Block,guide |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM; 1.251 IN. O/A LG; 0.750 IN. W; 0.745 IN. THK; 0.346 IN. TONGUE LG; 0.315 IN. TONGUE W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1FC673 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 03371-1 | 5/9 Secondary reference Kidde Fire Fighting, Inc. Div National Foam |
| 1FC673 | 5/9 Secondary reference Oshkosh Corp |
NSN 4210-01-040-8623 is a Block,guide, manufactured by Oshkosh Defense Llc, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-040-8623 has 1 manufacturer part number on file: 1FC673 (Oshkosh Defense Llc).
Key specifications for 1FC673: General Characteristics Item Description: ALUMINUM; 1.251 IN. O/A LG; 0.750 IN. W; 0.745 IN. THK; 0.346 IN. TONGUE LG; 0.315 IN. TONGUE W IN. 1 specification is 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.