The Retainer,valve, cataloged under National Stock Number 4820-01-165-9259, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 1 specification, 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 | 4820-01-165-9259 |
| Primary Part Number | L5871092-003 |
| Item Name | Retainer,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY PER QQ-A-225/6 2024-T851; 0.450 IN. LG,EXTERNALLY THREADED 0.8125-20 UNJEF-3A,45 DEGREE CHAMFER ONE END TO 0.670 IN. DIA,THREAD LENGTH 0.360 FROM CHAMFERED END,0.725 IN. OD END OPPOSITE CHAMFER,0.570 IN. MIN 0.580 IN. MAX OPENING THRU CENTER FOR LENGTH 0.280 IN.,BALANCE OF OPENING HEX SHAPED 0.500 ACROSS FLATS A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L5871092-003 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 4820-01-165-9259 is a Retainer,valve, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-165-9259 has 1 manufacturer part number on file: L5871092-003 (The Boeing Company Div Legacy Am&m).
Key specifications for L5871092-003: General Characteristics Item Description: ALUMINUM ALLOY PER QQ-A-225/6 2024-T851; 0.450 IN. LG,EXTERNALLY THREADED 0.8125-20 UNJEF-3A,45 DEGREE CHAMFER ONE END TO 0.670 IN. DIA,THREAD LENGTH 0.360 FROM CHAMFERED END,0.725 IN. OD END OPPOSITE CHAMFER,0.570 IN. MIN 0.580 IN. MAX OPENING THRU CENTER FOR LENGTH 0.280 IN.,BALANCE OF OPENING HEX SHAPED 0.500 ACROSS FLATS A; End Item Identification: B-1B. 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.
NSN 4820-01-165-9259 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.