PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A12721.001.156Stem,fluid Valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-091-1480 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-091-1480 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-091-1480. Primary manufacturer part number: A12721.001.156.
Features
  • Stem,fluid Valve — FSC 4820
  • Material Document and Classification: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE
  • Valve Type for Which Designed: RELIEF
  • Material: STEEL COMP 303
  • Valve Model Number for Which Designed: 2791-S
  • 5 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-091-1480, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, 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
NSN4820-01-091-1480
Primary Part NumberA12721.001.156
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Material Document and ClassificationQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE
Valve Type for Which DesignedRELIEF
MaterialSTEEL COMP 303
Valve Model Number for Which Designed2791-S
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-684416X730 INTERCHANGEABLE
Bearing,ball,annular
Garwood/feller Inc Garwood Winch Div
4320-00-846-079119616 INTERCHANGEABLE
Motor,hydraulic
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
6220-00-979-8826 INTERCHANGEABLE
Panel,illumination
4820-01-091-1470A7365.001.156 INTERCHANGEABLE
Dog Bushing,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4730-01-091-1471A7361.001.156 INTERCHANGEABLE
Packing Nut
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5340-01-091-472006481101156 INTERCHANGEABLE
Seat,helical Compression Spring
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-111-136020309GS91SS INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
6550-01-139-750520300 INTERCHANGEABLE
Test Kit,anaerobe Identification
Biomerieux Inc
4820-01-165-141720309JS91SS INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-167-906620309SS91SS INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
A12721.001.156 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20309 FIND 12 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20309 FIND 12 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20309 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A12721.001.156 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
3110-00-156-6844INTERCHANGEABLE
BEARING,BALL,ANNULAR
16X730
4320-00-846-0791INTERCHANGEABLE
MOTOR,HYDRAULIC
19616
6220-00-979-8826INTERCHANGEABLE
PANEL,ILLUMINATION
4820-01-091-1470INTERCHANGEABLE
DOG BUSHING,VALVE
A7365.001.156
4730-01-091-1471INTERCHANGEABLE
PACKING NUT
A7361.001.156
5340-01-091-4720INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
06481101156
4820-01-111-1360INTERCHANGEABLE
VALVE,SAFETY RELIEF
20309GS91SS
6550-01-139-7505INTERCHANGEABLE
TEST KIT,ANAEROBE IDENTIFICATION
20300
4820-01-165-1417INTERCHANGEABLE
VALVE,SAFETY RELIEF
20309JS91SS
4820-01-167-9066INTERCHANGEABLE
VALVE,SAFETY RELIEF
20309SS91SS
5940-01-283-0374INTERCHANGEABLE
TERMINAL BOARD
210003
5120-01-349-1437INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 4820-01-091-1480?

NSN 4820-01-091-1480 is a Stem,fluid Valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-091-1480?

NSN 4820-01-091-1480 has 5 cross-referenced part numbers: A12721.001.156 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20309 FIND 12 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20309 FIND 12 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20309 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A12721.001.156 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-091-1480?

There are 12 known substitutes for 4820-01-091-1480: 3110-00-156-6844, 4320-00-846-0791, 6220-00-979-8826 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A12721.001.156?

Key specifications for A12721.001.156: Material Document and Classification: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE; Valve Type for Which Designed: RELIEF; Material: STEEL COMP 303; Valve Model Number for Which Designed: 2791-S. 4 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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