PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11740O-Ring

Knappco Corporation Dba Civacon · NSN 5331-01-626-9996 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-626-9996 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-626-9996. Primary manufacturer part number: 11740.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Knappco Corporation Dba Civacon
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-626-9996, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Knappco Corporation Dba Civacon. This item has 2 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
NSN5331-01-626-9996
Primary Part Number11740
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerKnappco Corporation Dba Civacon
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4510-00-110-3746 INTERCHANGEABLE
Repair Kit,faucets
5120-00-142-4034 INTERCHANGEABLE
Tool,cam Setting
5945-00-189-455111740 INTERCHANGEABLE
Relay,electromagnetic
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
3455-00-243-217416291 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6680-01-021-219411740 INTERCHANGEABLE
Meter,flow Rate Indicating
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5310-01-119-3266 INTERCHANGEABLE
Washer,recessed
5130-01-130-719711740 INTERCHANGEABLE
Die,crimping Tool
Abb Installation Products Inc
3010-01-174-9555BF10 3/4-3/4 INTERCHANGEABLE
Coupling,shaft,flexible
Altra Industrial Motion Corp.
2530-01-182-78714117575 INTERCHANGEABLE
Rotor,disc Brake
Chrysler Corp Service and Parts Opns
5330-01-208-029211740 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
Cross-Reference Index
Part NumberManufacturer
C7050 Alma (FRA)
11740 PRIMARY Knappco Corporation Dba Civacon (USA)
Related Parts
4510-00-110-3746INTERCHANGEABLE
REPAIR KIT,FAUCETS
5120-00-142-4034INTERCHANGEABLE
TOOL,CAM SETTING
5945-00-189-4551INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
11740
3455-00-243-2174INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
16291
6680-01-021-2194INTERCHANGEABLE
METER,FLOW RATE INDICATING
11740
5310-01-119-3266INTERCHANGEABLE
WASHER,RECESSED
5130-01-130-7197INTERCHANGEABLE
DIE,CRIMPING TOOL
11740
3010-01-174-9555INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
BF10 3/4-3/4
2530-01-182-7871INTERCHANGEABLE
ROTOR,DISC BRAKE
4117575
5330-01-208-0292INTERCHANGEABLE
SEAL,PLAIN ENCASED
11740
6350-01-315-1057INTERCHANGEABLE
DETECTOR,LIGHT INTENSITY
C7050
6615-01-317-7973INTERCHANGEABLE
GYROSCOPE,RATE

Frequently Asked Questions

What is NSN 5331-01-626-9996?

NSN 5331-01-626-9996 is a O-Ring, manufactured by Knappco Corporation Dba Civacon, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-626-9996?

NSN 5331-01-626-9996 has 2 cross-referenced part numbers: C7050 (Alma), 11740 (Knappco Corporation Dba Civacon).

What NSN replaces 5331-01-626-9996?

There are 12 known substitutes for 5331-01-626-9996: 4510-00-110-3746, 5120-00-142-4034, 5945-00-189-4551 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11740?

Key specifications for 11740: End Item Identification: 20 INCH MANLID ASSEMBLY IN. 1 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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