The Ring,blow Down, cataloged under National Stock Number 4820-00-349-7163, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lunkenheimer Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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 | 4820-00-349-7163 |
| Primary Part Number | BT664 |
| Item Name | Ring,blow Down |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Lunkenheimer Co |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS,1.250 IN. OD BY 0.203 IN. THK,0.9631-27 NS 3B THREAD,20 CORRUGATIONS ON THE OD WITH A 0.046 IN. RADIUS,0.046 IN. W OF EACH CORRUGATIONS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| BT664 | Lunkenheimer Co (USA) |
NSN 4820-00-349-7163 is a Ring,blow Down, manufactured by Lunkenheimer Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-349-7163 has 1 cross-referenced part number: BT664 (Lunkenheimer Co).
There is 1 known substitute for 4820-00-349-7163: 3110-00-100-0671. Verify interchangeability with system specifications before substitution.
Key specifications for BT664: General Characteristics Item Description: BRASS,1.250 IN. OD BY 0.203 IN. THK,0.9631-27 NS 3B THREAD,20 CORRUGATIONS ON THE OD WITH A 0.046 IN. RADIUS,0.046 IN. W OF EACH CORRUGATIONS IN. 1 total characteristics are documented in the Federal Logistics Information System.