The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-00-340-1405, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Am General Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-340-1405 |
| Primary Part Number | 5578802 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 5578802 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 30686 | 5/9 Secondary reference Kelsey-Hayes Co Wheel Drum and Brake Div |
| 2530PL0648249 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2530003401405 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 2530003401405 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 4820-00-340-1405 is a Valve,bleeder,hydraulic System, manufactured by Am General Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-340-1405 has 1 manufacturer part number on file: 5578802 (Am General Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-499-8402. Verify interchangeability with system specifications before substitution.
Key specifications for 5578802: Special Features: STEEL,SPEC DATA,SAE,1112; ZINC-PLATED FINISH; DIM. DATA,1.17 IN. LG O/A,0.38 IN. ACROSS HEX FLATS,0.10 IN. LG HEX,0.78 IN. FROM VALVE END TO NEAREST HEX SHOULDER; BARBED TYPE HOSE CONNECTOR,BARBER TYPE DATA,0.17 IN. FROM HEX SHOULDER TO NEAREST EDGE OF BARBER HOSE CONNECTOR,0.313 IN. MAX,0.303 IN. MIN,LARGEST DIA OF HOSE CONNECTOR,0.203 IN. MAX,0.187 IN. MIN,SMALLEST DIA OF HOSE CONNECTOR,0.290 IN. LG HOSE CONNECTOR; VALVE SEAT END DATA,0.277 IN. LARGEST OD OF TAPER,3/32 IN. LG TAPER,0.280 IN. LG EXCL THD PORTION,0.210 IN. FROM CENTER OF INLET HOLE TO VALVE END,3/32 IN. DIA INLET HOLE,EXTERNAL THD DATA,3/8 IN. - 24 THD,NF,RH,CLASS 2 FIT,0.45 IN. LG; DRAIN HOLE DATA,1/8 IN. DIA,1 IN. LG IN; Part Name Assigned by Controlling Agency: BLEEDER VALVE; End Item Identification: TRUCK, UTILITIES, TOW CARRIER-W/SA, 1 1/4 TON, W/WINCH, HMMWV; TRUCK, AMBULANCE, 2-LITTER, SOFT TOP, 1 1/4 TON HMMWV; TRUCK, VEHICLE SYSTEM, 1 1/4-TON (HMMWV); TRUCK, UTUILITY, CARGO TROOP CARRIER, 5/4-TON W/E (M998). 0 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.