The Bulb,primer, cataloged under National Stock Number 4540-01-553-6622, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4540-01-553-6622 |
| Primary Part Number | 7356-01 |
| Item Name | Bulb,primer |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| General Characteristics Item Description | 7/8 INCH HOSE CONNECTION ON EACH END BARBED FOR 3/8 INCH HOSE IN |
| 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 |
|---|---|
| 7356-01 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 7060 REV D ITEM NO. 34 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 7356 REV A | D/9 Drawing number reference only Howell Laboratories Inc Dba Howell Laboratories Inc |
NSN 4540-01-553-6622 is a Bulb,primer, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-01-553-6622 has 2 manufacturer part numbers on file: 7356-01 (Howell Laboratories Inc Dba Howell Laboratories Inc), 7060 REV D ITEM NO. 34 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 7356-01: Overall Diameter: 2.000 INCHES NOMINAL IN; General Characteristics Item Description: 7/8 INCH HOSE CONNECTION ON EACH END BARBED FOR 3/8 INCH HOSE IN; Overall Length: 6.875 INCHES NOMINAL IN; Special Features: SUGGESTED SOURCE QUICKIT QUICKSILVER MARINE PARTS AND ACCESSORIES MERCURY MARINE, DIVISION OF BRUNSWICK CORP FOND DU LAC,WI. 2 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.