The Seat,valve, cataloged under National Stock Number 4820-00-631-6494, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix. Government technical data includes 7 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 | 4820-00-631-6494 |
| Primary Part Number | 76191 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix |
| Status | ACTIVE |
| Body Inside Diameter | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Seating Surface Shape | ANGULAR |
| Hardness Rating | 42.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Style Designator | PLAIN |
| Body Outside Diameter | 0.397 INCHES MINIMUM AND 0.417 INCHES MAXIMUM IN |
| Seat Angle in Deg | 45.000 NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-631-6494 is a Seat,valve, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-631-6494 has 3 cross-referenced part numbers: 76191 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), 76191 (Honeywell International Inc. Div Aerospace - Torrance), 76191 (Alliedsignal Inc Dba Allied-Signal Aerospace Co).
There is 1 known substitute for 4820-00-631-6494: 3010-01-275-7956. Verify interchangeability with system specifications before substitution.
Key specifications for 76191: Body Inside Diameter: 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Seating Surface Shape: ANGULAR; Hardness Rating: 42.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL; Material: STEEL CORROSION RESISTING OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.