PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1565-61835-001Valve,lift-Check

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · NSN 4820-00-629-8710 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-629-8710 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-629-8710. Primary manufacturer part number: S1565-61835-001.
Features
  • Valve,lift-Check — FSC 4820
  • Material: ALUMINUM ALLOY SEAT
  • Connection Type: THREADED INTERNAL BOSS FIRST END
  • Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Material: STEEL STEM
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Valve Operation Method: MANUAL
  • Disk Loading Method: SPRING
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Seat construction
General Description

The Valve,lift-Check, cataloged under National Stock Number 4820-00-629-8710, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-629-8710
Primary Part NumberS1565-61835-001
Item NameValve,lift-Check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
StatusACTIVE
MaterialALUMINUM ALLOY SEAT
Connection TypeTHREADED INTERNAL BOSS FIRST END
Maximum Operating Temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialSTEEL STEM
Mounting PositionHORIZONTAL OR VERTICAL
Valve Operation MethodMANUAL
Disk Loading MethodSPRING
Thread DirectionRIGHT-HAND FIRST END
Bonnet TypePACKING RETAINING
Flow Control DevicePOPPET
Thread Quantity Per Inch20 FIRST END
Thread Class3B FIRST END
Connection StyleGASKET SEAL (BOSS) FIRST END
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.437 INCHES FIRST END IN
Thread Series DesignatorUNF FIRST END
Style DesignatorSTRAIGHT THRU
MaterialALUMINUM ALLOY BODY
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Nominal Outside Diameter Tube Accommodated0.437 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4940-00-056-1019R440-5 INTERCHANGEABLE
Ball,float
Robert Manufacturing Company Inc
6515-00-103-66596530001036659 INTERCHANGEABLE
Surgical Pack,disposable
In-Sight Dba in Sight Enterprises
5120-00-133-0577 INTERCHANGEABLE
Die,crimping Tool
5331-00-167-51102-121V0747-75 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
3810-00-220-50737-576-000004 INTERCHANGEABLE
Latch Kit Hook
Grove U.s. Llc Dba Grove Us Llc
5120-00-243-7326 INTERCHANGEABLE
Extension,socket Wrench
5120-00-287-25084405 INTERCHANGEABLE
Adapter,socket,crowfoot Socket W
Wta Tool Llc
5930-00-503-4203272BP10M0DEL4405 INTERCHANGEABLE
Switch,pressure
Johnson Controls Inc Control Products Div
5920-00-584-4592SM-B-210031 INTERCHANGEABLE
Fuseholder,block
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-672-9318 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
S1565-61835-001 PRIMARY Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
4405 PRIMARY Tactair Fluid Controls Inc (USA)
4405 Tactair Fluid Controls Inc Phoenix Controls Div (USA)
S1565-61835 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
Related Parts
4940-00-056-1019INTERCHANGEABLE
BALL,FLOAT
R440-5
6515-00-103-6659INTERCHANGEABLE
SURGICAL PACK,DISPOSABLE
6530001036659
5120-00-133-0577INTERCHANGEABLE
DIE,CRIMPING TOOL
5331-00-167-5110INTERCHANGEABLE
O-RING
2-121V0747-75
3810-00-220-5073INTERCHANGEABLE
LATCH KIT HOOK
7-576-000004
5120-00-243-7326INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-287-2508INTERCHANGEABLE
ADAPTER,SOCKET,CROWFOOT SOCKET W
4405
5930-00-503-4203INTERCHANGEABLE
SWITCH,PRESSURE
272BP10M0DEL4405
5920-00-584-4592INTERCHANGEABLE
FUSEHOLDER,BLOCK
SM-B-210031
5950-00-672-9318INTERCHANGEABLE
COIL,RADIO FREQUENCY
5950-00-705-9396INTERCHANGEABLE
TRANSFORMER,POWER
722801-14
8125-00-933-4414INTERCHANGEABLE
BOTTLE,SCREW CAP
986590

Frequently Asked Questions

What is NSN 4820-00-629-8710?

NSN 4820-00-629-8710 is a Valve,lift-Check, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-629-8710?

NSN 4820-00-629-8710 has 4 cross-referenced part numbers: S1565-61835-001 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 4405 (Tactair Fluid Controls Inc), 4405 (Tactair Fluid Controls Inc Phoenix Controls Div), S1565-61835 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What NSN replaces 4820-00-629-8710?

There are 12 known substitutes for 4820-00-629-8710: 4940-00-056-1019, 6515-00-103-6659, 5120-00-133-0577 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1565-61835-001?

Key specifications for S1565-61835-001: Material: ALUMINUM ALLOY SEAT; Connection Type: THREADED INTERNAL BOSS FIRST END; Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF; Material: STEEL STEM. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com