The Cock,poppet Drain, cataloged under National Stock Number 4820-00-996-3946, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Allen Aircraft Products Inc. Government technical data includes 14 verified specifications, 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 | 4820-00-996-3946 |
| Primary Part Number | 2D100B |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Allen Aircraft Products Inc |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Material | ALUMINUM ALLOY BODY |
| Material | ALUMINUM ALLOY SEAT |
| Material | COPPER ALLOY AND RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Flow Control Device | DISK |
| Valve Operation Method | MANUAL |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |
| Material | STEEL STEM |
| Thread Series Designator | UNF ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Class | 2A ALL ENDS A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2D100B PRIMARY | Allen Aircraft Products Inc (USA) |
NSN 4820-00-996-3946 is a Cock,poppet Drain, manufactured by Allen Aircraft Products Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-996-3946 has 1 cross-referenced part number: 2D100B (Allen Aircraft Products Inc).
There is 1 known substitute for 4820-00-996-3946: 4820-00-203-6321. Verify interchangeability with system specifications before substitution.
Key specifications for 2D100B: Thread Direction: RIGHT-HAND ALL ENDS; Nominal Thread Size: 0.562 INCHES ALL ENDS IN; Material: ALUMINUM ALLOY BODY; Material: ALUMINUM ALLOY SEAT. 14 total characteristics are documented in the Federal Logistics Information System.