The Valve,check, cataloged under National Stock Number 4820-01-299-5678, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Apco/valve & Primer Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-299-5678 |
| Primary Part Number | S-300 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Apco/valve & Primer Corp |
| Status | ACTIVE |
| Supplementary Features | FLOW CONTROL DEVICE: PLUG |
| Disk Loading Method | SPRING |
| Mounting Position | HORIZONTAL |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S-300 | Apco/valve & Primer Corp (USA) |
| S-300 ASSEMBLY 302 | Apco/valve & Primer Corp (USA) |
| 302.1 | Apco/valve & Primer Corp (USA) |
| 302 AND S-300 | Apco/valve & Primer Corp (USA) |
NSN 4820-01-299-5678 is a Valve,check, manufactured by Apco/valve & Primer Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-299-5678 has 4 cross-referenced part numbers: S-300 (Apco/valve & Primer Corp), S-300 ASSEMBLY 302 (Apco/valve & Primer Corp), 302.1 (Apco/valve & Primer Corp), 302 AND S-300 (Apco/valve & Primer Corp).
There are 10 known substitutes for 4820-01-299-5678: 6250-00-023-6868, 5315-00-854-3175, 5331-00-859-6340 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for S-300: Supplementary Features: FLOW CONTROL DEVICE: PLUG; Disk Loading Method: SPRING; Mounting Position: HORIZONTAL; Material: COPPER ALLOY BODY. 6 total characteristics are documented in the Federal Logistics Information System.