PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

09-21243-1-1Valve,check

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-503-2610 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-503-2610 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-503-2610. Primary manufacturer part number: 09-21243-1-1.
Features
  • Valve,check — FSC 4820
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • 4 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-503-2610, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, 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
NSN4820-01-503-2610
Primary Part Number09-21243-1-1
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Mounting PositionHORIZONTAL OR VERTICAL
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5965-00-280-3111SC-C-105391 INTERCHANGEABLE
Cushion,ear
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6685-00-731-595810440MR INTERCHANGEABLE
Thermometer,self-Indicating
Winters Instruments
5935-01-058-64885082-2240-00 INTERCHANGEABLE
Adapter,connector
Tyco Electronics Corp
5310-01-326-5520212701-1 INTERCHANGEABLE
Nut,plain,hexagon
Lister Petter Americas Incorporated
4235-01-391-204721270 INTERCHANGEABLE
Sorbent,hazardous Material
A.r.k. Enterprises, Inc., the
1005-01-465-040112951011 INTERCHANGEABLE
Handle,gun Carrying
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
4820-01-503-249721270-001 INTERCHANGEABLE
Valve Assembly,manifold
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-503-261821270-1003-1 INTERCHANGEABLE
Seat,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-503-262121270-1004-1 INTERCHANGEABLE
Retainer,quiet Element
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-503-262321270-1000-1 INTERCHANGEABLE
Disk,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21249 FIND 40 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21270 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
09-21243-1-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21270-11 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5965-00-280-3111INTERCHANGEABLE
CUSHION,EAR
SC-C-105391
6685-00-731-5958INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
10440MR
5935-01-058-6488INTERCHANGEABLE
ADAPTER,CONNECTOR
5082-2240-00
5310-01-326-5520INTERCHANGEABLE
NUT,PLAIN,HEXAGON
212701-1
4235-01-391-2047INTERCHANGEABLE
SORBENT,HAZARDOUS MATERIAL
21270
1005-01-465-0401INTERCHANGEABLE
HANDLE,GUN CARRYING
12951011
4820-01-503-2497INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
21270-001
4820-01-503-2618INTERCHANGEABLE
SEAT,VALVE
21270-1003-1
4820-01-503-2621INTERCHANGEABLE
RETAINER,QUIET ELEMENT
21270-1004-1
4820-01-503-2623INTERCHANGEABLE
DISK,VALVE
21270-1000-1
4820-01-503-6862INTERCHANGEABLE
REGULATING ELEMENT,FLOW,VALVE
21270-801-1
5950-01-529-6526INTERCHANGEABLE
TRANSFORMER,POWER
21270

Frequently Asked Questions

What is NSN 4820-01-503-2610?

NSN 4820-01-503-2610 is a Valve,check, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-503-2610?

NSN 4820-01-503-2610 has 4 cross-referenced part numbers: 21249 FIND 40 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21270 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 09-21243-1-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21270-11 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-503-2610?

There are 12 known substitutes for 4820-01-503-2610: 5965-00-280-3111, 6685-00-731-5958, 5935-01-058-6488 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 09-21243-1-1?

Key specifications for 09-21243-1-1: Mounting Position: HORIZONTAL OR VERTICAL; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: THIS CHECK VALVE IS PART OF A MANIFOLD VALVE ASSEMBLY WHICH ALSO INCLUDES A RESTRICTOR VALVE; MEDIA IS HYDRAULIC FLUID; End Item Identification: NHA 4820-01-503-2497 RESTRICTOR MANIFOLD VALVE ASSY; SEAWOLF CLASS SSN. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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