PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70111O-Ring

Blako Inc. Dba Blakeslee · NSN 5331-01-372-3869 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-372-3869 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-372-3869. Primary manufacturer part number: 70111.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Blako Inc. Dba Blakeslee
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-372-3869, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Blako Inc. Dba Blakeslee. This item has 1 commercial cross-reference from 1 manufacturer, 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)
ManufacturersBlako Inc. Dba Blakeslee (CAGE 7L611)
Technical Specifications
ParameterValue
NSN5331-01-372-3869
Primary Part Number70111
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerBlako Inc. Dba Blakeslee
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-082-5002 INTERCHANGEABLE
Terminal,stud
2540-00-377-869256D4-1-74 INTERCHANGEABLE
Handle,door,vehicular
Fwd Seagrave Holdings Lp
2540-00-627-7728142SX32 INTERCHANGEABLE
Handle,door,vehicular
Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
5905-00-661-08107011-1 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto
5305-00-719-5279 INTERCHANGEABLE
Screw,cap,hexagon Head
5310-00-775-288870111 INTERCHANGEABLE
Nut,plain,cap
Triumph Engine Control Systems Llc
5985-00-877-4224215-37180-1 INTERCHANGEABLE
Coupler,directional
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
6515-01-121-6481 INTERCHANGEABLE
Stockings,anti-Embolism
3040-01-318-63017011100 INTERCHANGEABLE
Worm Shaft
Alfa Laval Inc
3040-01-430-41537-0111-01 INTERCHANGEABLE
Shaft,shouldered
Air & Liquid Systems Corporation Dba Buffalo Pumps
Cross-Reference Index
Part NumberManufacturer
70111 PRIMARY Blako Inc. Dba Blakeslee (USA)
Related Parts
5940-00-082-5002INTERCHANGEABLE
TERMINAL,STUD
2540-00-377-8692INTERCHANGEABLE
HANDLE,DOOR,VEHICULAR
56D4-1-74
2540-00-627-7728INTERCHANGEABLE
HANDLE,DOOR,VEHICULAR
142SX32
5905-00-661-0810INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
7011-1
5305-00-719-5279INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5310-00-775-2888INTERCHANGEABLE
NUT,PLAIN,CAP
70111
5985-00-877-4224INTERCHANGEABLE
COUPLER,DIRECTIONAL
215-37180-1
6515-01-121-6481INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
3040-01-318-6301INTERCHANGEABLE
WORM SHAFT
7011100
3040-01-430-4153INTERCHANGEABLE
SHAFT,SHOULDERED
7-0111-01
1005-01-480-4676INTERCHANGEABLE
RETAINER,GUN COMPONENT
70111
5305-01-646-1089INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
70111

Frequently Asked Questions

What is NSN 5331-01-372-3869?

NSN 5331-01-372-3869 is a O-Ring, manufactured by Blako Inc. Dba Blakeslee, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-372-3869?

NSN 5331-01-372-3869 has 1 cross-referenced part number: 70111 (Blako Inc. Dba Blakeslee).

What NSN replaces 5331-01-372-3869?

There are 12 known substitutes for 5331-01-372-3869: 5940-00-082-5002, 2540-00-377-8692, 2540-00-627-7728 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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