The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-417-2771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Coffin Turbo Pump Inc. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-417-2771 |
| Primary Part Number | 101935 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Coffin Turbo Pump Inc |
| Status | ACTIVE |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Style Designator | PLAIN |
| End Connection Quantity | 2 |
| Second End Style Designator | INVERTED FLARE |
| First End Connection Type | THREADED INTERNAL PIPE |
| Second End Connection Type | THREADED INTERNAL PIPE |
| 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 |
|---|---|
| SKB-1921 ITEM X217 | Coffin Turbo Pump Inc (USA) |
| 101935 PRIMARY | Coffin Turbo Pump Inc (USA) |
| Reference | Meaning |
|---|---|
| SKB-1921 | D/9 Drawing number reference only Coffin Turbo Pump Inc |
| SKB-1932 | D/9 Drawing number reference only Coffin Turbo Pump Inc |
NSN 4820-01-417-2771 is a Valve,regulating,fluid Pressure, manufactured by Coffin Turbo Pump Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-417-2771 has 2 manufacturer part numbers on file: SKB-1921 ITEM X217 (Coffin Turbo Pump Inc), 101935 (Coffin Turbo Pump Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-549-1334. Verify interchangeability with system specifications before substitution.
Key specifications for 101935: Second End Relationship with First End: NOT IDENTICAL; First End Style Designator: PLAIN; End Connection Quantity: 2; Second End Style Designator: INVERTED FLARE. 6 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.