PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28106Valve,safety Relief

Hydro-Aire Aerospace Corp · NSN 4820-00-529-4263 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-529-4263 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-529-4263. Primary manufacturer part number: 28106.
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: STRAIGHT THRU W/OFFSET
  • Thread Series Designator: UNF FIRST END
  • Operating Pressure: 2300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Media for Which Designed: OIL, HYDRAULIC SINGLE RESPONSE
  • Flow Control Device: POPPET
  • Valve Operation Method: AUTOMATIC
  • Surface Treatment: ANODIZE LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-529-4263, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-529-4263
Primary Part Number28106
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
Style DesignatorSTRAIGHT THRU W/OFFSET
Thread Series DesignatorUNF FIRST END
Operating Pressure2300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedOIL, HYDRAULIC SINGLE RESPONSE
Flow Control DevicePOPPET
Valve Operation MethodAUTOMATIC
Surface TreatmentANODIZE LOCATION NOT OTHERWISE SPECIFIED
Nominal Outside Diameter Tube Accommodated0.563 INCHES FIRST END IN
Disk Loading MethodSPRING
Thread Class3B FIRST END
Connection StyleFLARE(TUBE) FIRST END
Renewable Seat Ring TypeTHREADED
Adjustable Pressure Range+1000.0 TO 2300.0 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND FIRST END
Bonnet Attachment MethodTHREADED
Bonnet TypeINSIDE SPRING
Offset Distance1.500 INCHES IN
Connection TypeTHREADED INTERNAL BOSS FIRST END
Nominal Thread Size0.563 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5845-00-373-266128106 INTERCHANGEABLE
Transformer Af
Raytheon Company Dba Raytheon
5330-00-855-5717 INTERCHANGEABLE
Gasket
4810-01-180-616519305 INTERCHANGEABLE
Stem,needle Valve
G.w. Lisk Co, Inc Div G.w. Lisk Company, Inc.
5935-01-195-5902MS3452W14S-9P INTERCHANGEABLE
Connector,receptacle,electrical
Sae International Dba Sae International
5305-01-503-721428-106 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Carrier Company, Llc
6130-01-623-738928106 INTERCHANGEABLE
Charger,battery
Guest Co Inc the
5340-01-633-022428106 INTERCHANGEABLE
Chock,adjustable,universal
Unison Industries, Llc Dba Unison Industries Inc
5995-01-667-899028106 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cables to Go
Cross-Reference Index
Part NumberManufacturer
28106 PRIMARY Hydro-Aire Aerospace Corp (USA)
N28106 Hydro-Aire Aerospace Corp (USA)
28106 Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins (USA)
Related Parts
5845-00-373-2661INTERCHANGEABLE
TRANSFORMER AF
28106
5330-00-855-5717INTERCHANGEABLE
GASKET
4810-01-180-6165INTERCHANGEABLE
STEM,NEEDLE VALVE
19305
5935-01-195-5902INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
MS3452W14S-9P
5305-01-503-7214INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
28-106
6130-01-623-7389INTERCHANGEABLE
CHARGER,BATTERY
28106
5340-01-633-0224INTERCHANGEABLE
CHOCK,ADJUSTABLE,UNIVERSAL
28106
5995-01-667-8990INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
28106

Frequently Asked Questions

What is NSN 4820-00-529-4263?

NSN 4820-00-529-4263 is a Valve,safety Relief, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-529-4263?

NSN 4820-00-529-4263 has 3 cross-referenced part numbers: 28106 (Hydro-Aire Aerospace Corp), N28106 (Hydro-Aire Aerospace Corp), 28106 (Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins).

What NSN replaces 4820-00-529-4263?

There are 8 known substitutes for 4820-00-529-4263: 5845-00-373-2661, 5330-00-855-5717, 4810-01-180-6165 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28106?

Key specifications for 28106: Style Designator: STRAIGHT THRU W/OFFSET; Thread Series Designator: UNF FIRST END; Operating Pressure: 2300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Media for Which Designed: OIL, HYDRAULIC SINGLE RESPONSE. 19 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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