The Stem,fluid Valve, cataloged under National Stock Number 4820-01-277-5513, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fairbanks Co the. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-277-5513 |
| Primary Part Number | A-6683M-6IN-PC9 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fairbanks Co the |
| Status | ACTIVE |
| Valve Type for Which Designed | GLOBE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| A-6683M-6IN-PC9 PRIMARY | Fairbanks Co the (USA) |
| Reference | Meaning |
|---|---|
| A-6683M | D/9 Drawing number reference only Fairbanks Co the |
NSN 4820-01-277-5513 is a Stem,fluid Valve, manufactured by Fairbanks Co the, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-277-5513 has 1 manufacturer part number on file: A-6683M-6IN-PC9 (Fairbanks Co the).
4 possible matches (shared part number, not a government interchangeability claim): 4810-01-278-8766, 4810-01-293-2943, 4820-01-293-5164. Verify interchangeability with system specifications before substitution.
Key specifications for A-6683M-6IN-PC9: Valve Type for Which Designed: GLOBE; Stem Actuating End Type: THREADED EXTERNALLY; Special Features: 300 PSI WOG; Material: NICKEL ALLOY. 3 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.