We've received your request for 4M2028 (described as Valve Check), manufactured by Crissair Inc with CAGE code 99240. This part is registered under NSN 4820-01-537-7724, classified in FSG / FSC . Our verification process will confirm traceability through supporting identifiers including NIIN 01-537-7724, NCB code 01 (origin: USA), and INC 05487. Please submit your formal quotation request to proceed.
Thank you for choosing Aerospace Exchange for your 4M2028 requirements. We specialize in authenticated aerospace components, offering both NSN-tracked military parts and commercial equivalents, all validated through our rigorous sourcing protocols.
How to Begin the Quotation Process
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 4820-01-537-7724 Item PartTypeName: VALVE,CHECK | 4820 | 015377724 | N | A | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| A | A | 0 | ||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 4M2028 | 5 | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | POPPET |
| AEQJ | MINIMUM OPERATING TEMP | -54.0 DEG CELSIUS |
| CQGM | MAXIMUM OPERATING PRESSURE | 690.0 KILOPASCALS SINGLE RESPONSE |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| CWCF | FACE TO FACE DISTANCE | 42.0 MILLIMETERS |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4965, 6AL4V ASSN STD SINGLE MATERIAL RESPONSE BODY |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2488, TYPE II ASSN STD SINGLE TREATMENT RESPONSE AND MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| MATT | MATERIAL | STEEL COMP 440C FLOW CONTROL DEVICE |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |
| SFTT | SURFACE TREATMENT | ANODIZE AND PASSIVATE |
| AEHZ | MAXIMUM OPERATING TEMP | 135.0 DEG CELSIUS SINGLE RESPONSE |
| End Use : 21180 | Industrial machines, other |
|---|---|
| Schedule B : 8481309000 (NAICS 332911) | Check valves of materials other than copper, iron or steel |
| SITC : 74730 | Check valves |
| ADPE | Represents items with no adp components |
|---|---|
| CRITL | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| ESD | A - No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity. |
| HMIC | N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials. |
| PMIC | A - Item does not contain precious metal. |
![]() |
AS9120B and ISO 9001:2015 |
![]() |
Aviation Suppliers Association Member |
![]() |
FAA AC 0056B Accredited |
![]() |
AS 6081:2012 Certification |
![]() |
ESD S20.20-2014 Certification |
Don’t forget That We offer 24/7 Service, Competitive Prices, and Fast Deliveries. We Hope You'll Make Us Your One-Stop Purchasing Solution!
Request for Quote