We’re pleased to announce that part number 20556-RB with NSN 4820001257677 is now available in our ready-to-ship inventory. Manufactured by Robertshaw Controls Company having CAGE Code 73475 under FSC 4820 Valves Nonpowered, 20556-RB part is a Valve Flow Control. Are you interested in a quick quote for 20556-RB part? All you have to do is fill in the RFQ form below with your information, and we will take care of the rest. A dedicated sales representative will respond to your RFQ by email or by phone within 15 minutes of receiving this form.
| Part Number: 20556-RB | NSN: 4820-00-125-7677 (4820001257677) | Item Name: Valve Flow Control | NIIN : 001257677 | |
| CAGE Code: 73475 | FSC: 4820 Valves Nonpowered | FSG: 48 Valves | Category: NSN | |
| Qty Available: 2144 | Description: Valve Flow Control | Manufacturer: Robertshaw Controls Company | Last Updated: 05-21-2025 | Country: USA |
| NCB Code: 00 | INC Code: 45506 | |||
Your quote will be calculated based on your answers to asterisk-marked (*) fields such as Needs Parts By and Quantity (ea), so be sure to fill them out as best and as thorough as possible. ASAP Aviation Stock, owned and operated by ASAP Semiconductor, is a leading supplier of NSN parts - with more than 2 billion NSNs in stock.
We are an AS9120B, ISO 9001:2015, and FAA 0056B accredited company and have several warehouses full of ready-to-ship parts in key locations across the US and Canada. This allows us to fulfill AOG requirements in a timely manner with ease. Need to meet your requirements ASAP? No problem, we offer same day shipping and next day shipping on qualifying items.
The National Stock Number, also known as NSN, is recognized and utilized as a cataloging system for procuring, stocking, and issuing items by all members of the North Atlantic Treaty Organization (NATO) and the United States’ Department of Defense (DoD). To learn more about 20556-RB part with NSN 4820001257677, call us at our toll-free number +1-714-705-4780, or email us at sales@asapaviationstock.com.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 4820-00-125-7677 Item Description: VALVE,FLOW CONTROL | 4820 | 001257677 | 622.70 | N | N | |
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| 0 | FLOW CONTROL | U | ||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| S-85562-A1 | C | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| FEAT | SPECIAL FEATURES | FLAT SEATING,BELLOWS TYPE,FUSIBLE RETAINING LINK;3 MOUNTING HOLES |
| 2010000011565 | 3010000016187 |
| 1510010879129 | 4010000019590 |
| 5110000122252 | 6010012320400 |
| 7010003227140 | 8150014633182 |
| 1510001240914 | 1510000808414 |
| View All | |
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