PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1040Cock,plug

Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division · NSN 4820-00-272-3358 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-272-3358 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-272-3358. Primary manufacturer part number: 1040.
Features
  • Cock,plug — FSC 4820
  • Thread Series Designator: NPT ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Valve Operation Method: MANUAL
  • Material: COPPER ALLOY OVERALL
  • Features Provided: NONADJUSTABLE ROTATION
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Nondefinitive Spec/std Data: 2 TYPE AND A STYLE AND 1 DESIGN
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cock,plug, cataloged under National Stock Number 4820-00-272-3358, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-272-3358
Primary Part Number1040
Item NameCock,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
StatusCANCELLED
Thread Series DesignatorNPT ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Valve Operation MethodMANUAL
MaterialCOPPER ALLOY OVERALL
Features ProvidedNONADJUSTABLE ROTATION
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nondefinitive Spec/std Data2 TYPE AND A STYLE AND 1 DESIGN
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Flow StyleTWO WAY TWO PORT 90 DEGREE PLUG TURN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4820-00-274-36369802 INTERCHANGEABLE
Cock,plug
A Y Mcdonald Mfg Co
Cross-Reference Index
Part NumberManufacturer
1040 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
4820-000-1005 National Institutes of Health (USA)
298-26-98 Rexworks Inc (USA)
MILD1203 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4820-00-274-3636INTERCHANGEABLE
COCK,PLUG
9802

Frequently Asked Questions

What is NSN 4820-00-272-3358?

NSN 4820-00-272-3358 is a Cock,plug, manufactured by Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-272-3358?

NSN 4820-00-272-3358 has 4 cross-referenced part numbers: 1040 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 4820-000-1005 (National Institutes of Health), 298-26-98 (Rexworks Inc), MILD1203 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4820-00-272-3358?

There is 1 known substitute for 4820-00-272-3358: 4820-00-274-3636. Verify interchangeability with system specifications before substitution.

What are the specifications of 1040?

Key specifications for 1040: Thread Series Designator: NPT ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS; Valve Operation Method: MANUAL; Material: COPPER ALLOY OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-272-3358 still in active supply?

NSN 4820-00-272-3358 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.
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