PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1251BBValve,globe

Superior Valve Co · NSN 4820-00-855-2512 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-855-2512 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-855-2512. Primary manufacturer part number: 1251BB.
Features
  • Valve,globe — FSC 4820
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Bonnet Type: INSIDE SCREW
  • Flow Control Device: DISK
  • Material: COPPER ALLOY BODY
  • Material: COPPER ALLOY SEAT
  • Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS
  • Material: SILVER FLOW CONTROL DEVICE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,globe, cataloged under National Stock Number 4820-00-855-2512, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Superior Valve Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN4820-00-855-2512
Primary Part Number1251BB
Item NameValve,globe
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSuperior Valve Co
StatusCANCELLED
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Bonnet TypeINSIDE SCREW
Flow Control DeviceDISK
MaterialCOPPER ALLOY BODY
MaterialCOPPER ALLOY SEAT
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
MaterialSILVER FLOW CONTROL DEVICE
Valve Operation MethodMANUAL
Thread DirectionRIGHT-HAND ALL ENDS
Bonnet Attachment MethodTHREADED
Media for Which DesignedNITROGEN, GASEOUS SINGLE RESPONSE
Operating Pressure3.6 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Style DesignatorSTRAIGHT THRU
Nominal Thread Size0.250 INCHES ALL ENDS IN
MaterialCOPPER ALLOY STEM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-131-2406BX-5115 INTERCHANGEABLE
Transformer,audio Frequency
Baltimore Transformer Co
6685-00-193-950230039 INTERCHANGEABLE
Thermostat,flow Control
Ideal Instruments Inc
3020-00-200-2182 INTERCHANGEABLE
Gear,spur
3130-00-482-70843003-9 INTERCHANGEABLE
Bearing Unit,ball
Rockland, Inc.
5340-00-698-0432SM-C-189386 INTERCHANGEABLE
Lever,manual Control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6150-00-774-37343111585 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Chrysler Corp Engine and Components Sales Diversified Products Div
5950-01-073-8656 INTERCHANGEABLE
Transformer,power
3020-01-181-202130039-1416 INTERCHANGEABLE
Gear,helical
Republic Machinery Co Inc Dba Republic Lagun Machine Tool Co
4820-01-248-87699041010-01 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Mile High Equipment Company Dba Ice-O-Matic
4730-01-261-096430039 INTERCHANGEABLE
Nozzle,sand Blast
Tritan Corp
Cross-Reference Index
Part NumberManufacturer
1251BB Superior Valve Co (USA)
55A46B4 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
300039 Metadure Parts & Sales, Inc. (USA)
30039 Metadure Parts & Sales, Inc. (USA)
Related Parts
5950-00-131-2406INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
BX-5115
6685-00-193-9502INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
30039
3020-00-200-2182INTERCHANGEABLE
GEAR,SPUR
3130-00-482-7084INTERCHANGEABLE
BEARING UNIT,BALL
3003-9
5340-00-698-0432INTERCHANGEABLE
LEVER,MANUAL CONTROL
SM-C-189386
6150-00-774-3734INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
3111585
5950-01-073-8656INTERCHANGEABLE
TRANSFORMER,POWER
3020-01-181-2021INTERCHANGEABLE
GEAR,HELICAL
30039-1416
4820-01-248-8769INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
9041010-01
4730-01-261-0964INTERCHANGEABLE
NOZZLE,SAND BLAST
30039
5305-01-329-6019INTERCHANGEABLE
SCREW,MACHINE
30039
6505-01-348-2465INTERCHANGEABLE
PRIMAQUINE PHOSPHATE TABLETS
NDC42291-0510-01

Frequently Asked Questions

What is NSN 4820-00-855-2512?

NSN 4820-00-855-2512 is a Valve,globe, manufactured by Superior Valve Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-855-2512?

NSN 4820-00-855-2512 has 4 cross-referenced part numbers: 1251BB (Superior Valve Co), 55A46B4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 300039 (Metadure Parts & Sales, Inc.), 30039 (Metadure Parts & Sales, Inc.).

What NSN replaces 4820-00-855-2512?

There are 12 known substitutes for 4820-00-855-2512: 5950-00-131-2406, 6685-00-193-9502, 3020-00-200-2182 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1251BB?

Key specifications for 1251BB: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Bonnet Type: INSIDE SCREW; Flow Control Device: DISK; Material: COPPER ALLOY BODY. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-855-2512 still in active supply?

NSN 4820-00-855-2512 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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