The Valve,check, cataloged under National Stock Number 4820-01-435-4929, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-435-4929 |
| Primary Part Number | 6746-Y-3/4-CHECK |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) BODY |
| Valve Operation Method | AUTOMATIC |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6670 IT11 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 6670 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 6746-Y-3/4-CHECK PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
NSN 4820-01-435-4929 is a Valve,check, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-435-4929 has 3 cross-referenced part numbers: 6670 IT11 (Howell Laboratories Inc Dba Howell Laboratories Inc), 6670 (Howell Laboratories Inc Dba Howell Laboratories Inc), 6746-Y-3/4-CHECK (Howell Laboratories Inc Dba Howell Laboratories Inc).
There are 8 known substitutes for 4820-01-435-4929: 5305-00-146-2832, 2910-00-146-2858, 5920-00-190-7332 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6746-Y-3/4-CHECK: Material: PLASTIC POLYVINYL CHLORIDE (PVC) BODY; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Valve Operation Method: AUTOMATIC; Special Features: VALVE SIZE 3/4 IN. IN. 5 total characteristics are documented in the Federal Logistics Information System.