PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103-70O-Ring

Master Pneumatic-Detroit Inc · NSN 5331-00-805-5349 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-805-5349 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-805-5349. Primary manufacturer part number: 103-70.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Master Pneumatic-Detroit Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-805-5349, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Master Pneumatic-Detroit Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-805-5349
Primary Part Number103-70
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMaster Pneumatic-Detroit Inc
StatusCANCELLED
Center Hole Diameter2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5998-00-021-5339 INTERCHANGEABLE
Electronic Components Assembly
5998-00-226-4491 INTERCHANGEABLE
Electronic Components Assembly
5815-00-324-9266SM-B-171626 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-328-199110370 INTERCHANGEABLE
Transformer,power
Astronautics Corporation of America
4320-00-336-622810370 INTERCHANGEABLE
Cover,bearing Housing
Rps-Fl, Inc. Dba Rps Inc
5325-00-781-5902MS27980-7 INTERCHANGEABLE
Stud,snap Fastener
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5945-00-922-003110370 INTERCHANGEABLE
Relay,electromagnetic
Creating Technology Solutions, Llc Dba Technology Research Corp Div Technology Research Corp
3010-01-052-064010-370 INTERCHANGEABLE
Universal Joint,nonvehicular
Apex Tool Group, Llc
4940-01-266-565010370 INTERCHANGEABLE
Column,outer
L & R Manufacturing Company
5355-01-334-3710 INTERCHANGEABLE
Knob
Cross-Reference Index
Part NumberManufacturer
103-70 Master Pneumatic-Detroit Inc (USA)
Related Parts
5998-00-021-5339INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5998-00-226-4491INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5815-00-324-9266INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SM-B-171626
5950-00-328-1991INTERCHANGEABLE
TRANSFORMER,POWER
10370
4320-00-336-6228INTERCHANGEABLE
COVER,BEARING HOUSING
10370
5325-00-781-5902INTERCHANGEABLE
STUD,SNAP FASTENER
MS27980-7
5945-00-922-0031INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
10370
3010-01-052-0640INTERCHANGEABLE
UNIVERSAL JOINT,NONVEHICULAR
10-370
4940-01-266-5650INTERCHANGEABLE
COLUMN,OUTER
10370
5355-01-334-3710INTERCHANGEABLE
KNOB
6520-01-383-4751INTERCHANGEABLE
FILE SET,PULP CANAL,DENTAL
10370
4820-01-503-2870INTERCHANGEABLE
VALVE,CHECK
10-370

Frequently Asked Questions

What is NSN 5331-00-805-5349?

NSN 5331-00-805-5349 is a O-Ring, manufactured by Master Pneumatic-Detroit Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-805-5349?

NSN 5331-00-805-5349 has 1 cross-referenced part number: 103-70 (Master Pneumatic-Detroit Inc).

What NSN replaces 5331-00-805-5349?

There are 12 known substitutes for 5331-00-805-5349: 5998-00-021-5339, 5998-00-226-4491, 5815-00-324-9266 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103-70?

Key specifications for 103-70: Center Hole Diameter: 2.599 INCHES MINIMUM AND 2.619 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-805-5349 still in active supply?

NSN 5331-00-805-5349 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.
PartsTable Design LLC · partstable.com