We’re pleased to announce that N551 (Valve Regulating Fluid Pressure, NSN: 4820-00-181-8911) is now in stock and ready for immediate quoting. This component, manufactured by Leslie Controls Inc (CAGE Code: 35795), is classified under NIIN 00-181-8911 and NCB Code 00 (USA), with additional categorization under FSG 48 Valves/FSC 4820 Valves Nonpowered and INC 27565. Our team can provide same-day shipping for urgent requirements.
To receive your competitive quote within 15 minutes, simply complete our RFQ form part N551, ensuring all required fields are filled. Our streamlined process guarantees fast, no-obligation pricing so you can secure your supply of N551 without delay. Contact us today to meet your procurement needs efficiently
ASAP Part Services, a trusted subsidiary of ASAP Semiconductor, is a premier distributor of Leslie Controls Inc components—specializing in obsolete and hard-to-find parts. As an AS9120B, ISO 9001:2015, and FAA AC 0056B certified supplier, we adhere to the highest industry standards under the Aviation Suppliers Association (ASA). Our global network spans 5,000+ top manufacturers, ensuring access to over 2 billion unique parts for critical needs.
With strategically located shipping centers in California, we offer rapid same-day or next-day delivery on in-stock items like N551. Whether you're sourcing rare components or need expedited logistics, we provide reliable solutions to keep your operations moving forward.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 4820-00-181-8911 Item PartTypeName: VALVE,REGULATING,FLUID PRESSURE | 4820 | 001818911 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| N551 | 2 | 9 | 5 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | STRAIGHT THRU |
| ABEP | STEM MATERIAL | NICKEL COPPER ALLOY |
| ABFF | FURNISHED ITEMS | UNION NUT AND TAILPIECE |
| ACKL | MEDIA FOR WHICH DESIGNED | WATER,FRESH AND WATER,SALT |
| ACKM | FIRST END CONNECTION TYPE | UNTHREADED INTERNAL TUBE |
| ACKN | FIRST END STYLE DESIGNATOR | SOCKET W/BRAZING RING |
| ACLH | FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 1.000 INCHES NOMINAL |
| ACLR | SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| ACSH | SEAT MATERIAL | RUBBER |
| ADQU | FLOW CONTROL DEVICE | DIAPHRAGM |
| ADQV | FLOW CONTROL DEVICE MATERIAL | RUBBER |
| ADQZ | END CONNECTION QUANTITY | 2 |
| ADZH | RENEWABLE SEAT RING TYPE | THREADED |
| AEVA | OUTLET PRESSURE RANGE | 25.0 TO 60.0 POUNDS PER SQUARE INCH |
| AEVN | REGULATION TYPE | AUTOMATIC DOUBLE STAGE |
| AEVQ | VALVE STEM DESIGN | SINGLE SEAT |
| AEVR | VALVE LOADING METHOD | SPRING |
| AEVZ | MAXIMUM INLET PRESSURE RATING | 150.0 POUNDS PER SQUARE INCH |
| AEWF | FILTER | NOT INCLUDED |
| AZKQ | TEMP RATING | 165.0 DEG FAHRENHEIT MAXIMUM |
| FEAT | SPECIAL FEATURES | ENDS W/O BRAZING RINGS INSTALLED |
| MATT | MATERIAL | COPPER ALLOY BODY |
| SPCL | SPECIAL TEST FEATURES | HIGH-IMPACT SHOCK TESTS ARE REQUIRED AS DIRECTED IN PARAGRAPHS 3.6 AND 4.4.2.3 OF MIL-V-2042 IN PAC TEST ABOVE |
| TEST | TEST DATA DOCUMENT | 81349-MILV2042 SPECIFICATION INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTING |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 2 TYPE |
| End Use : 21180 | Industrial machines, other |
|---|---|
| Schedule B : 8481809015 (NAICS 332911) | Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level |
| SITC : 74780 | Taps, cocks, valves and similar appliances, n.E.S. |
| CRITL | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
|---|---|
| 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. |
| AAC | Z |
|---|---|
| Classification Control | U |
| MGMT_CTL | 3b----- |
| Quantity per pack | 1 |
| Repariability | |
| Shelf Life | N/A |
| SOS | Sms |
| Unit of Measure | Ea |
| ACC: | B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater |
|---|---|
| ADC: | A - Shipment is not a consolidation and does not exceed 84 inches in any dimension. |
| LTL: | W - Rating variable |
| NMFC: | 051080 - Faucets, bibcocks, gates valves |
| SHC: | 9 - Other or no special handling required (sh) |
| TCC: | Z - No special type of cargo code applicable |
| WCC: | 576 - Metal and metal products, nos, (less than 35 feet) |
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