PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9802Cock,plug

A Y Mcdonald Mfg Co · NSN 4820-00-274-3636 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-274-3636 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-274-3636. Primary manufacturer part number: 9802.
Features
  • Cock,plug — FSC 4820
  • Material: COPPER ALLOY OVERALL
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Nondefinitive Spec/std Data: H TYPE
  • Thread Series Designator: NPT ALL ENDS
  • Valve Operation Method: MANUAL
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cock,plug, cataloged under National Stock Number 4820-00-274-3636, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is A Y Mcdonald Mfg Co. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-274-3636
Primary Part Number9802
Item NameCock,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerA Y Mcdonald Mfg Co
StatusCANCELLED
MaterialCOPPER ALLOY OVERALL
Thread DirectionRIGHT-HAND ALL ENDS
Nondefinitive Spec/std DataH TYPE
Thread Series DesignatorNPT ALL ENDS
Valve Operation MethodMANUAL
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Thread Size1.000 INCHES ALL ENDS IN
Flow StyleTWO WAY TWO PORT 360 DEGREE PLUG TURN
Furnished Items and Quantity1 WRENCH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4330-00-068-8187348-3 INTERCHANGEABLE
Filter Element,fluid
Collins Engine Nozzles, Inc
5935-00-105-996710552762 INTERCHANGEABLE
Connector,plug,electrical
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5950-00-199-2161 INTERCHANGEABLE
Transformer,power
7450-00-210-9023272 INTERCHANGEABLE
Transcribing Machine
International Business Machines Corp Parts Order Center Dept E - 54
9540-00-251-1906 INTERCHANGEABLE
Angle,structural
4820-00-272-3358 INTERCHANGEABLE
Cock,plug
4940-00-300-3645272 INTERCHANGEABLE
Tank,safety Wash
Protectoseal Co Container Div
5975-00-319-0798 INTERCHANGEABLE
Cover,conduit Outlet
5998-00-324-0550 INTERCHANGEABLE
Extender Card,electronic Test
5930-00-434-91214D1259 INTERCHANGEABLE
Switch,rotary
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
9802 Atlantic Valve & Supply Inc (USA)
102BX5 Joy Global Underground Mining Llc (USA)
272 Crane Co Div Valve Div (USA)
MILD1203 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
320 Crane Co Div Valve Div (USA)
5047-5-16 Chief of Engineers Dept of Army (USA)
DF3035 Refinite Products Sales Inc (USA)
9802 PRIMARY A Y Mcdonald Mfg Co (USA)
9802-0100 PRIMARY Atlantic Valve & Supply Inc (USA)
MILD1203 Eclipse Inc Rockford-Eclipse Div (USA)
Related Parts
4330-00-068-8187INTERCHANGEABLE
FILTER ELEMENT,FLUID
348-3
5935-00-105-9967INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
10552762
5950-00-199-2161INTERCHANGEABLE
TRANSFORMER,POWER
7450-00-210-9023INTERCHANGEABLE
TRANSCRIBING MACHINE
272
9540-00-251-1906INTERCHANGEABLE
ANGLE,STRUCTURAL
4820-00-272-3358INTERCHANGEABLE
COCK,PLUG
4940-00-300-3645INTERCHANGEABLE
TANK,SAFETY WASH
272
5975-00-319-0798INTERCHANGEABLE
COVER,CONDUIT OUTLET
5998-00-324-0550INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
5930-00-434-9121INTERCHANGEABLE
SWITCH,ROTARY
4D1259
4130-00-472-8655INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
121939-1
4820-00-529-3198INTERCHANGEABLE
VALVE,CHECK
4390

Frequently Asked Questions

What is NSN 4820-00-274-3636?

NSN 4820-00-274-3636 is a Cock,plug, manufactured by A Y Mcdonald Mfg Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-274-3636?

NSN 4820-00-274-3636 has 10 cross-referenced part numbers: 9802 (Atlantic Valve & Supply Inc), 102BX5 (Joy Global Underground Mining Llc), 272 (Crane Co Div Valve Div), MILD1203 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 320 (Crane Co Div Valve Div) and 5 more.

What NSN replaces 4820-00-274-3636?

There are 12 known substitutes for 4820-00-274-3636: 4330-00-068-8187, 5935-00-105-9967, 5950-00-199-2161 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9802?

Key specifications for 9802: Material: COPPER ALLOY OVERALL; Thread Direction: RIGHT-HAND ALL ENDS; Nondefinitive Spec/std Data: H TYPE; Thread Series Designator: NPT ALL ENDS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-274-3636 still in active supply?

NSN 4820-00-274-3636 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com