PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102707O-Ring

Irl Thermal Systems Ltd · NSN 5331-00-126-4621 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-126-4621 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-126-4621. Primary manufacturer part number: 102707.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.250 INCHES NOMINAL IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • 3 verified cross-references
  • Primary manufacturer: Irl Thermal Systems Ltd
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-126-4621, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Irl Thermal Systems Ltd. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-126-4621
Primary Part Number102707
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerIrl Thermal Systems Ltd
StatusACTIVE
Cross-Sectional Height0.250 INCHES NOMINAL IN
MaterialRUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5821-01-003-1336102707 INTERCHANGEABLE
Control Unit,television
Aimtron Systems, Llc
5940-01-037-8908 INTERCHANGEABLE
Post,binding,electrical
Cross-Reference Index
Part NumberManufacturer
1009677PC22 Irl Thermal Systems Ltd (GBR)
1027 Irl Thermal Systems Ltd (GBR)
102707 PRIMARY Irl Thermal Systems Ltd (GBR)
Related Parts
5821-01-003-1336INTERCHANGEABLE
CONTROL UNIT,TELEVISION
102707
5940-01-037-8908INTERCHANGEABLE
POST,BINDING,ELECTRICAL

Frequently Asked Questions

What is NSN 5331-00-126-4621?

NSN 5331-00-126-4621 is a O-Ring, manufactured by Irl Thermal Systems Ltd, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-126-4621?

NSN 5331-00-126-4621 has 3 cross-referenced part numbers: 1009677PC22 (Irl Thermal Systems Ltd), 1027 (Irl Thermal Systems Ltd), 102707 (Irl Thermal Systems Ltd).

What NSN replaces 5331-00-126-4621?

There are 2 known substitutes for 5331-00-126-4621: 5821-01-003-1336, 5940-01-037-8908. Verify interchangeability with system specifications before substitution.

What are the specifications of 102707?

Key specifications for 102707: Cross-Sectional Height: 0.250 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR. 2 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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