PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

269A1PP1Valve,check

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-00-555-3761 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-555-3761 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-555-3761. Primary manufacturer part number: 269A1PP1.
Features
  • Valve,check — FSC 4820
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Disk Loading Method: SPRING
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: STRAIGHT THRU
  • Thread Series Designator: NPT ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Valve,check, cataloged under National Stock Number 4820-00-555-3761, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN4820-00-555-3761
Primary Part Number269A1PP1
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Disk Loading MethodSPRING
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size0.125 INCHES ALL ENDS IN
MaterialALUMINUM ALLOY OVERALL
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Valve Operation MethodAUTOMATIC
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
Mounting PositionHORIZONTAL
Flow Control DevicePOPPET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5985-00-147-9011395979-1 INTERCHANGEABLE
Attenuator,variable
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
3110-00-156-788405851AB INTERCHANGEABLE
Bearing,ball,annular
Cnh Industrial America Llc Dba Cnh America
6240-00-196-45011490 INTERCHANGEABLE
Lamp,incandescent
Ward Leonard Ct Llc
5133-00-228-1375 INTERCHANGEABLE
Drill,twist
6635-00-472-379310090 INTERCHANGEABLE
Magnetic Inspection Unit,portabl
Illinois Tool Works, Inc. Div Magnaflux
5305-00-543-2595 INTERCHANGEABLE
Screw,machine
3110-00-554-328810090 INTERCHANGEABLE
Bearing,ball,annular
Wausau Equipment Company Llc Dba Schmidt Engineering & Equipment Inc Div Wausau Equipment Llc
4320-00-558-005252-109-785-003 INTERCHANGEABLE
Sleeve,shaft,pump
Siemens-Allis Inc Medium Motor-Generator Div
3040-00-915-54957660-103 INTERCHANGEABLE
Shaft
Bera Tilt-Top Trailer Inc
1005-01-459-627510090 INTERCHANGEABLE
Action Bar,sub-Assy
O F Mossberg & Sons Inc
Cross-Reference Index
Part NumberManufacturer
10090 Elbitamerica, Inc. (USA)
269A1PP1 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
5985-00-147-9011INTERCHANGEABLE
ATTENUATOR,VARIABLE
395979-1
3110-00-156-7884INTERCHANGEABLE
BEARING,BALL,ANNULAR
05851AB
6240-00-196-4501INTERCHANGEABLE
LAMP,INCANDESCENT
1490
5133-00-228-1375INTERCHANGEABLE
DRILL,TWIST
6635-00-472-3793INTERCHANGEABLE
MAGNETIC INSPECTION UNIT,PORTABL
10090
5305-00-543-2595INTERCHANGEABLE
SCREW,MACHINE
3110-00-554-3288INTERCHANGEABLE
BEARING,BALL,ANNULAR
10090
4320-00-558-0052INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
52-109-785-003
3040-00-915-5495INTERCHANGEABLE
SHAFT
7660-103
1005-01-459-6275INTERCHANGEABLE
ACTION BAR,SUB-ASSY
10090
4810-01-542-3629INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
10090
5975-01-671-9712INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
6001-001539

Frequently Asked Questions

What is NSN 4820-00-555-3761?

NSN 4820-00-555-3761 is a Valve,check, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-555-3761?

NSN 4820-00-555-3761 has 2 cross-referenced part numbers: 10090 (Elbitamerica, Inc.), 269A1PP1 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-00-555-3761?

There are 12 known substitutes for 4820-00-555-3761: 5985-00-147-9011, 3110-00-156-7884, 6240-00-196-4501 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 269A1PP1?

Key specifications for 269A1PP1: Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Disk Loading Method: SPRING; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS. 14 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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