PartsTable TECHNICAL DATA SHEET
NSN 4820-01-261-2934Government record, cited

Valve, Check4820-01-261-2934

NSN 4820-01-261-2934 · NIIN 012612934 · Part number 510793-4
Hydrasearch Company, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 32142
Government record, cited
NSN 4820-01-261-2934 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-261-2934. Manufacturer of record part number: 510793-4.
Also searched as  4820-01-261-2934 · 4820012612934 · NIIN 012612934 · 01-261-2934 · FSC 4820 Valves, Nonpowered · CAGE 32142 · 510793-4
Nearby stock numbers  ·
Features
  • Valve,check — FSC 4820
  • Flow Control Device: POPPET
  • Connection Style: GASKET SEAL (BOSS) ALL ENDS
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Connection Type: THREADED INTERNAL BOSS ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Operating Pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Thread Direction: RIGHT-HAND ALL ENDS
Identification
  • NSN: 4820-01-261-2934
  • NIIN: 012612934
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 510793-4
  • Manufacturer: Hydrasearch Company, Llc
General Description

The Valve,check, cataloged under National Stock Number 4820-01-261-2934, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydrasearch Company, Llc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-261-2934
Primary Part Number510793-4
Item NameValve,check
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerHydrasearch Company, Llc
StatusACTIVE
Flow Control DevicePOPPET
Connection StyleGASKET SEAL (BOSS) ALL ENDS
Mounting PositionHORIZONTAL OR VERTICAL
Connection TypeTHREADED INTERNAL BOSS ALL ENDS
Style DesignatorSTRAIGHT THRU
Operating Pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread DirectionRIGHT-HAND ALL ENDS
Nominal Thread Size1.625 INCHES ALL ENDS IN
Media for Which DesignedAIR SINGLE RESPONSE
Thread Class3B ALL ENDS
Thread Quantity Per Inch12 ALL ENDS
MaterialSTEEL CORROSION RESISTING BODY
Thread Series DesignatorUN ALL ENDS
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
510793-4 Hydrasearch Company, Llc (USA)
510793-4 Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA)
Reference documents
ReferenceMeaning
510793-4 3/2 Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-261-2934?

NSN 4820-01-261-2934 is a Valve,check, manufactured by Hydrasearch Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-261-2934?

NSN 4820-01-261-2934 has 2 manufacturer part numbers on file: 510793-4 (Hydrasearch Company, Llc), 510793-4 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).

What are the specifications of 510793-4?

Key specifications for 510793-4: Flow Control Device: POPPET; Connection Style: GASKET SEAL (BOSS) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: THREADED INTERNAL BOSS ALL ENDS. 14 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-261-2934 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com