PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

01-435-0373-4 PIECE 62O-Ring

Flowserve Corp Dba Automax Actuators Div Flowserve Us Company · NSN 5331-01-309-9761 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-309-9761 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-309-9761. Primary manufacturer part number: 01-435-0373-4 PIECE 62.
Features
  • O-Ring — FSC 5331
  • 4 verified cross-references
  • Primary manufacturer: Flowserve Corp Dba Automax Actuators Div Flowserve Us Company
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-309-9761, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Flowserve Corp Dba Automax Actuators Div Flowserve Us Company. This item has 4 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.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersFlowserve Corp Dba Automax Actuators Div Flowserve Us Company (CAGE 52374); Zf Industrieantriebe Witten Gmbh (CAGE D9182)
Technical Specifications
ParameterValue
NSN5331-01-309-9761
Primary Part Number01-435-0373-4 PIECE 62
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFlowserve Corp Dba Automax Actuators Div Flowserve Us Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-134-8906 INTERCHANGEABLE
Valve,linear,directional Control
5305-00-151-3051 INTERCHANGEABLE
Screw,machine
3110-00-156-1721 INTERCHANGEABLE
Bearing,ball,thrust
6740-00-444-9813SM-D-612369 INTERCHANGEABLE
Pump Assembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6680-00-488-9325010 INTERCHANGEABLE
Regulator,pressure,medical Gas a
Bird Products Corp
5950-00-568-20450-100UNCER INTERCHANGEABLE
Transformer,audio Frequency
Magnetika Inc
6515-00-721-9092 INTERCHANGEABLE
Plug,ear
6730-00-917-5172 INTERCHANGEABLE
Illuminator-Viewer
5331-01-004-0333010 INTERCHANGEABLE
O-Ring
Petrometer Corp
6625-01-285-7984010 INTERCHANGEABLE
Tip,test Prod
Technicorp
Cross-Reference Index
Part NumberManufacturer
CM1-040-B46A Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA)
01-435-0373-4 PIECE 62 PRIMARY Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA)
010 Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA)
040-B46A Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
4820-00-134-8906INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
5305-00-151-3051INTERCHANGEABLE
SCREW,MACHINE
3110-00-156-1721INTERCHANGEABLE
BEARING,BALL,THRUST
6740-00-444-9813INTERCHANGEABLE
PUMP ASSEMBLY
SM-D-612369
6680-00-488-9325INTERCHANGEABLE
REGULATOR,PRESSURE,MEDICAL GAS A
010
5950-00-568-2045INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
0-100UNCER
6515-00-721-9092INTERCHANGEABLE
PLUG,EAR
6730-00-917-5172INTERCHANGEABLE
ILLUMINATOR-VIEWER
5331-01-004-0333INTERCHANGEABLE
O-RING
010
6625-01-285-7984INTERCHANGEABLE
TIP,TEST PROD
010
5310-01-352-7587INTERCHANGEABLE
WASHER,SPRING TENSION
D407029A ITEM 25
5110-01-400-1418INTERCHANGEABLE
SHEARS,METAL CUTTING,HAND
010

Frequently Asked Questions

What is NSN 5331-01-309-9761?

NSN 5331-01-309-9761 is a O-Ring, manufactured by Flowserve Corp Dba Automax Actuators Div Flowserve Us Company, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-309-9761?

NSN 5331-01-309-9761 has 4 cross-referenced part numbers: CM1-040-B46A (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company), 01-435-0373-4 PIECE 62 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company), 010 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company), 040-B46A (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5331-01-309-9761?

There are 12 known substitutes for 5331-01-309-9761: 4820-00-134-8906, 5305-00-151-3051, 3110-00-156-1721 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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