The Trunnion,valve, cataloged under National Stock Number 4820-00-166-9880, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-166-9880 |
| Primary Part Number | 2AB1 |
| Item Name | Trunnion,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS;HUBBED FLANGE,1.750 IN.FLANGE THICKNESS;HUB 0.875 IN.OD;0.510 IN. HUB LG;BORE DIA.0.625 IN,0.895 IN.LG;1 THRD HOLE ON FLANGE FACE 0.164-36 UNF;4 UNTHREADED 0.175 IN.DIA;1 THRD HOLE IN FLANGE PERIPHERY 0.138-32 UNC IN |
| 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 |
|---|---|
| 2AB1 PRIMARY | Oshkosh Defense Llc (USA) |
| 40000757 PRIMARY | Akron Brass Company (USA) |
| Reference | Meaning |
|---|---|
| 2AB1 | 5/9 Secondary reference Oshkosh Corp |
| 0273-00-0-0-14-005 | 5/9 Secondary reference Akron Brass Company |
| 0273-00-0-0-14-005-1-1-2 | 5/9 Secondary reference Akron Brass Company |
NSN 4820-00-166-9880 is a Trunnion,valve, manufactured by Oshkosh Defense Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-166-9880 has 2 manufacturer part numbers on file: 2AB1 (Oshkosh Defense Llc), 40000757 (Akron Brass Company).
Key specifications for 2AB1: General Characteristics Item Description: BRASS;HUBBED FLANGE,1.750 IN.FLANGE THICKNESS;HUB 0.875 IN.OD;0.510 IN. HUB LG;BORE DIA.0.625 IN,0.895 IN.LG;1 THRD HOLE ON FLANGE FACE 0.164-36 UNF;4 UNTHREADED 0.175 IN.DIA;1 THRD HOLE IN FLANGE PERIPHERY 0.138-32 UNC 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.