The Fitting,manifold Fire Extinguish, cataloged under National Stock Number 4210-01-142-7923, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4210-01-142-7923 |
| Primary Part Number | A51L30500-13 |
| Item Name | Fitting,manifold Fire Extinguish |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | 4.250 IN. LG; 1.380 IN. W; 4 MOUNTING HOLES SIZE 0.190 IN. DIA; CORNERS CHAMFERED 45 DEG; ONE FITTING END THD SIZE 0.875-14 UNJF-3A; ONE FITTING END THD 1.062-12 UNJ-3A A |
| 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 |
|---|---|
| A51L30500-13 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51L30500-13 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51L30500 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| A51L30500-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4210-01-142-7923 is a Fitting,manifold Fire Extinguish, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-142-7923 has 1 manufacturer part number on file: A51L30500-13 (Northrop Grumman Systems Corporation).
Key specifications for A51L30500-13: General Characteristics Item Description: 4.250 IN. LG; 1.380 IN. W; 4 MOUNTING HOLES SIZE 0.190 IN. DIA; CORNERS CHAMFERED 45 DEG; ONE FITTING END THD SIZE 0.875-14 UNJF-3A; ONE FITTING END THD 1.062-12 UNJ-3A A. 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.