PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5102-1Valve,pressure Equalizing,gaseou

Aar Allen Services, Inc Dba Aar Component Services Wellington · NSN 4820-00-772-2501 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-772-2501 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-772-2501. Primary manufacturer part number: 5102-1.
Features
  • Valve,pressure Equalizing,gaseou — FSC 4820
  • Disk Loading Method: SPRING
  • First End Connection Type: THREADED INTERNAL BOSS
  • Valve Venting Design Type: CLOSED SYSTEM
  • First End Style Designator: GASKET SEAL
  • End Connection Quantity: 2
  • First End Thread Direction: RIGHT-HAND
  • First End Thread Class: 3B
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,pressure Equalizing,gaseou, cataloged under National Stock Number 4820-00-772-2501, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aar Allen Services, Inc Dba Aar Component Services Wellington. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-00-772-2501
Primary Part Number5102-1
Item NameValve,pressure Equalizing,gaseou
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAar Allen Services, Inc Dba Aar Component Services Wellington
StatusACTIVE
Disk Loading MethodSPRING
First End Connection TypeTHREADED INTERNAL BOSS
Valve Venting Design TypeCLOSED SYSTEM
First End Style DesignatorGASKET SEAL
End Connection Quantity2
First End Thread DirectionRIGHT-HAND
First End Thread Class3B
Media for Which DesignedAIR
Operating Pressure190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Test Data Document76823-2-43916-501 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Opening Pressure SettingERR-060
Second End Relationship with First EndIDENTICAL
Temp Rating-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-019-0632C6908 INTERCHANGEABLE
Packing,preformed
Hydro Line Mfg Co
5999-00-078-144850701-000 INTERCHANGEABLE
Contact Assembly,electrical
Rees, Inc
5935-00-105-76631005202-3 INTERCHANGEABLE
Guide,electrical Connector
Armel De Llc Dba Armel Electronics
5340-00-205-5266 INTERCHANGEABLE
Button,plug
5310-00-209-2594110S20 INTERCHANGEABLE
Washer,key
Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)
6160-00-643-04043168059PCAA INTERCHANGEABLE
Jar,battery
Naval Ship Systems Command
4820-00-892-212751021 INTERCHANGEABLE
Valve,angle
Velan Valve Corp.
5315-00-918-705451021 INTERCHANGEABLE
Pin,quick Release
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
5330-01-024-456251021 INTERCHANGEABLE
Seal Assembly
Shaw Development, Llc
7510-01-047-023036-12153-01 INTERCHANGEABLE
Ribbon,inking
Compaq Federal Llc
Cross-Reference Index
Part NumberManufacturer
5102-1 PRIMARY Aar Allen Services, Inc Dba Aar Component Services Wellington (USA)
Related Parts
5330-00-019-0632INTERCHANGEABLE
PACKING,PREFORMED
C6908
5999-00-078-1448INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
50701-000
5935-00-105-7663INTERCHANGEABLE
GUIDE,ELECTRICAL CONNECTOR
1005202-3
5340-00-205-5266INTERCHANGEABLE
BUTTON,PLUG
5310-00-209-2594INTERCHANGEABLE
WASHER,KEY
110S20
6160-00-643-0404INTERCHANGEABLE
JAR,BATTERY
3168059PCAA
4820-00-892-2127INTERCHANGEABLE
VALVE,ANGLE
51021
5315-00-918-7054INTERCHANGEABLE
PIN,QUICK RELEASE
51021
5330-01-024-4562INTERCHANGEABLE
SEAL ASSEMBLY
51021
7510-01-047-0230INTERCHANGEABLE
RIBBON,INKING
36-12153-01
7045-01-086-2044INTERCHANGEABLE
TAPE,ELECTRONIC DATA PROCESSING
9150-01-193-1443INTERCHANGEABLE
LUBRICANT,SOLID FILM
51021

Frequently Asked Questions

What is NSN 4820-00-772-2501?

NSN 4820-00-772-2501 is a Valve,pressure Equalizing,gaseou, manufactured by Aar Allen Services, Inc Dba Aar Component Services Wellington, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-772-2501?

NSN 4820-00-772-2501 has 1 cross-referenced part number: 5102-1 (Aar Allen Services, Inc Dba Aar Component Services Wellington).

What NSN replaces 4820-00-772-2501?

There are 12 known substitutes for 4820-00-772-2501: 5330-00-019-0632, 5999-00-078-1448, 5935-00-105-7663 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5102-1?

Key specifications for 5102-1: Disk Loading Method: SPRING; First End Connection Type: THREADED INTERNAL BOSS; Valve Venting Design Type: CLOSED SYSTEM; First End Style Designator: GASKET SEAL. 13 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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