The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-177-8508, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Messer Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-177-8508 |
| Primary Part Number | 0413-9002 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Messer Llc |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| 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 |
|---|---|
| 0413-9002 PRIMARY | Messer Llc (USA) |
| Reference | Meaning |
|---|---|
| 7010049-004 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| 7010049 | 7/1 Vendor item drawing reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| 043-22052 | 5/9 Secondary reference Messer Llc |
NSN 4820-01-177-8508 is a Valve,regulating,fluid Pressure, manufactured by Messer Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-177-8508 has 1 manufacturer part number on file: 0413-9002 (Messer Llc).
1 possible match (shared part number, not a government interchangeability claim): 2350-01-458-7550. Verify interchangeability with system specifications before substitution.
Key specifications for 0413-9002: Material: COPPER ALLOY BODY. 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 4820-01-177-8508 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.