The Adapter,vent,valve, cataloged under National Stock Number 4820-01-066-0145, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Betts Industries, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-066-0145 |
| Primary Part Number | 16963AL |
| Item Name | Adapter,vent,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Betts Industries, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM; 3.000 IN. O/A LG; 2.500 IN. OF LG IS 1-3/8 IN. HEX OUTSIDE; 1/2 IN. OF LG IS 1.000 IN. OD; HEX END HAS 1.000 IN. ID 2.000 IN. DEEP; @ID OF OTHER END IS 1/2 IN.-20 UNF W/1/4 IN.-20 UNC SET SCREW CENTERED 1/4 IN. FROM END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-066-0145 is a Adapter,vent,valve, manufactured by Betts Industries, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-066-0145 has 2 manufacturer part numbers on file: 11668893 (U S Army Tank Automotive Command Amsta-Im-Mm), 16963AL (Betts Industries, Inc.).
Key specifications for 16963AL: General Characteristics Item Description: ALUMINUM; 3.000 IN. O/A LG; 2.500 IN. OF LG IS 1-3/8 IN. HEX OUTSIDE; 1/2 IN. OF LG IS 1.000 IN. OD; HEX END HAS 1.000 IN. ID 2.000 IN. DEEP; @ID OF OTHER END IS 1/2 IN.-20 UNF W/1/4 IN.-20 UNC SET SCREW CENTERED 1/4 IN. FROM END IN. 1 specification is 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.