The Cock,poppet Drain, cataloged under National Stock Number 4820-01-306-3275, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-306-3275 |
| Primary Part Number | 12308805 |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flow Control Device | STEM |
| Surface Treatment Document and Classification | QQ-P-146 FED SPEC ALL TREATMENT RESPONSES |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | BASTM A569 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-A-46027 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | QQ-S-741 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Surface Treatment | CADMIUM |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Thread Class | 2B ALL ENDS |
| Material | STEEL BODY |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY SEAT |
| Material | STEEL STEM |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL ENDS |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12308805 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4820-01-306-3275 is a Cock,poppet Drain, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-306-3275 has 1 manufacturer part number on file: 12308805 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12308805: Flow Control Device: STEM; Surface Treatment Document and Classification: QQ-P-146 FED SPEC ALL TREATMENT RESPONSES; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Connection Type: THREADED INTERNAL BOSS ALL ENDS. 20 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.