The Retainer,valve, cataloged under National Stock Number 4820-01-165-9255, 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 | 4820-01-165-9255 |
| Primary Part Number | L5871063-003 |
| 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 2024-T8511; 0.600 IN. LG,EXTERNALLY THREADED 1.0625-18 UNJEF-3A 0.380 IN. FROM ONE END,0.875 IN. OD OTHER END,HEX SHAPED OPENING THRU LENGTH 0.625 IN. ACROSS FLATS,THREE EQUALLY SPACED HOLES 0.062 IN. AT 45 DEGREE ANGLE,PART OF L5871440-VALVE 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 |
|---|---|
| L5871063-003 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 4820-01-165-9255 is a Retainer,valve, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-165-9255 has 1 manufacturer part number on file: L5871063-003 (The Boeing Company Div Legacy Am&m).
Key specifications for L5871063-003: General Characteristics Item Description: ALUMINUM ALLOY 2024-T8511; 0.600 IN. LG,EXTERNALLY THREADED 1.0625-18 UNJEF-3A 0.380 IN. FROM ONE END,0.875 IN. OD OTHER END,HEX SHAPED OPENING THRU LENGTH 0.625 IN. ACROSS FLATS,THREE EQUALLY SPACED HOLES 0.062 IN. AT 45 DEGREE ANGLE,PART OF L5871440-VALVE 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 4820-01-165-9255 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.