We’re pleased to announce that part number S8603 with NSN 4820003553994 is now available in our ready-to-ship inventory. Manufactured by Compair Kellogg having CAGE Code 53239 under FSC 4820 Valves Nonpowered, S8603 part is a Valve Safety Relief. Are you interested in a quick quote for S8603 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: S8603 | NSN: 4820-00-355-3994 (4820003553994) | Item Name: Valve Safety Relief | NIIN : 003553994 | |
| CAGE Code: 53239 | FSC: 4820 Valves Nonpowered | FSG: 48 Valves | Category: NSN | |
| Qty Available: 1389 | Description: Valve Safety Relief | Manufacturer: Compair Kellogg | Last Updated: 05-23-2025 | Country: USA |
| NCB Code: 00 | INC Code: 05488 | |||
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 S8603 part with NSN 4820003553994, 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 |
|---|---|---|---|---|---|---|
| 4820-00-355-3994 Item Description: VALVE,SAFETY RELIEF | 4820 | 003553994 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| S8603 | 2 | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 2ND END |
| ADQU | FLOW CONTROL DEVICE | BALL |
| ADSU | DISK LOADING METHOD | SPRING |
| AEHZ | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AGAV | END ITEM IDENTIFICATION | GRUMMIN AEROSPACE A10 AIRCRAFT |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 1ST END |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 2ND END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 2ND END |
| CBBL | FEATURES PROVIDED | VALVE STEM LOCK SHIELD |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES 2ND END |
| CSDC | OPENING PRESSURE SETTING | 180.0 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | COPPER ALLOY BODY |
| MATT | MATERIAL | COPPER ALLOY SEAT |
| MATT | MATERIAL | STEEL FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL STEM |
| STYL | STYLE DESIGNATOR | ANGLE |
| THSD | THREAD SERIES DESIGNATOR | NPT 1ST END |
| THSD | THREAD SERIES DESIGNATOR | NPT 2ND END |
| 2010000011565 | 3010000016187 |
| 1510010879129 | 4010000019590 |
| 5110000122252 | 6010012320400 |
| 7010003227140 | 8150014633182 |
| 1510001240914 | 1510000808414 |
| View All | |
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