The Valve,vent, cataloged under National Stock Number 4820-01-073-4103, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-073-4103 |
| Primary Part Number | 12288032 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Connection Style | COMPRESSION (TUBE) FIRST END |
| Connection Style | DOUBLE COMPRESSION(TUBE) SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.125 INCHES FIRST END IN |
| Seat Angle | 25.0 DEGREES SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | NPTF FIRST END |
| 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 |
|---|---|
| 12288032 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| DAX10775 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 12288032 | 5/2 Secondary reference U.S. Government activity |
| 12267294 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12267294 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-073-4103 is a Valve,vent, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-073-4103 has 2 manufacturer part numbers on file: 12288032 (U S Army Tank Automotive Command Amsta-Im-Mm), DAX10775 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 12288032: Connection Style: COMPRESSION (TUBE) FIRST END; Connection Style: DOUBLE COMPRESSION(TUBE) SECOND END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Connection Type: THREADED INTERNAL TUBE SECOND END. 13 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.