The Valve,check, cataloged under National Stock Number 4820-01-057-4897, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-057-4897 |
| Primary Part Number | MC13182 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE |
| Style Designator | STRAIGHT THRU |
| Valve Size | 0.140 INCHES IN |
| Surface Treatment | PASSIVATE |
| Face to Face Distance | 0.620 INCHES IN |
| Material | STEEL COMP 303 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| MC13182 PRIMARY | The Boeing Company Div Defense (USA) |
| MC13182 | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
| Reference | Meaning |
|---|---|
| MC13182 | 5/2 Secondary reference U.S. Government activity |
| 10109270 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4820-01-057-4897 is a Valve,check, manufactured by The Boeing Company Div Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-057-4897 has 2 manufacturer part numbers on file: MC13182 (The Boeing Company Div Defense), MC13182 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace).
Key specifications for MC13182: Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE; Style Designator: STRAIGHT THRU; Valve Size: 0.140 INCHES IN; Surface Treatment: PASSIVATE. 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.
NSN 4820-01-057-4897 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.