The Valve,check, cataloged under National Stock Number 4820-01-450-8951, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bosworth Co. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-450-8951 |
| Primary Part Number | 74-M-8 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Bosworth Co |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-450-8951 is a Valve,check, manufactured by Bosworth Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-450-8951 has 4 cross-referenced part numbers: 74-M-8 (Bosworth Co), 74-1M (Bosworth Co), 74-1IN (Bosworth Co), 74-1IN M (Bosworth Co).
There is 1 known substitute for 4820-01-450-8951: 4110-01-043-0217. Verify interchangeability with system specifications before substitution.
Key specifications for 74-M-8: Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Nominal Thread Size: 1.000 INCHES ALL ENDS IN; Connection Style: PLAIN (PIPE) ALL ENDS; Thread Series Designator: NPT ALL ENDS. 7 total characteristics are documented in the Federal Logistics Information System.