The Valve,safety Relief, cataloged under National Stock Number 4820-00-493-1991, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Taylor-Dunn Corporation Dba Metro Crown International. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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 | 4820-00-493-1991 |
| Primary Part Number | 42972 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Taylor-Dunn Corporation Dba Metro Crown International |
| Status | ACTIVE |
| Material | STEEL BODY |
| Face to Face Distance | 2.165 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-493-1991 is a Valve,safety Relief, manufactured by Taylor-Dunn Corporation Dba Metro Crown International, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-493-1991 has 3 cross-referenced part numbers: 42972 (Taylor-Dunn Corporation Dba Metro Crown International), 5696010 (General Motors Corp Saginaw Div), 5696010 (Linear Motion Llc Div Ugm).
There is 1 known substitute for 4820-00-493-1991: 5950-00-647-5300. Verify interchangeability with system specifications before substitution.
Key specifications for 42972: Material: STEEL BODY; Special Features: W/POLYTETRAFLUOROETHYLENE SEAT RINGS; Face to Face Distance: 2.165 INCHES IN. 3 total characteristics are documented in the Federal Logistics Information System.