PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100-127O-Ring

Sheffer Corp · NSN 5331-00-126-5265 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-126-5265 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-126-5265. Primary manufacturer part number: 100-127.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Center Hole Diameter: 1.418 INCHES MINIMUM AND 1.430 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Sheffer Corp
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 5331-00-126-5265, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sheffer Corp. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-126-5265
Primary Part Number100-127
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSheffer Corp
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Center Hole Diameter1.418 INCHES MINIMUM AND 1.430 INCHES MAXIMUM IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-227-2510GB810 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
6625-00-673-451612INWITHLC5302AND163-0512-3 INTERCHANGEABLE
Lead Assy,tester
Mission Systems Davenport Inc.
5950-01-106-6841100127 INTERCHANGEABLE
Inductor
L3 Technologies, Inc. Div Communication Systems-East
3110-01-172-70299121001-02 INTERCHANGEABLE
Bearing,ball,annular
Mile High Equipment Company Dba Ice-O-Matic
5331-01-249-7225 INTERCHANGEABLE
O-Ring
3120-01-381-2217 INTERCHANGEABLE
Bearing,sleeve
4820-01-480-22261001-27 INTERCHANGEABLE
Valve,check
Aqualung Usa, Inc
Cross-Reference Index
Part NumberManufacturer
100-127 PRIMARY Sheffer Corp (USA)
Related Parts
3110-00-227-2510INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
GB810
6625-00-673-4516INTERCHANGEABLE
LEAD ASSY,TESTER
12INWITHLC5302AND163-0512-3
5950-01-106-6841INTERCHANGEABLE
INDUCTOR
100127
3110-01-172-7029INTERCHANGEABLE
BEARING,BALL,ANNULAR
9121001-02
5331-01-249-7225INTERCHANGEABLE
O-RING
3120-01-381-2217INTERCHANGEABLE
BEARING,SLEEVE
4820-01-480-2226INTERCHANGEABLE
VALVE,CHECK
1001-27

Frequently Asked Questions

What is NSN 5331-00-126-5265?

NSN 5331-00-126-5265 is a O-Ring, manufactured by Sheffer Corp, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-126-5265?

NSN 5331-00-126-5265 has 1 cross-referenced part number: 100-127 (Sheffer Corp).

What NSN replaces 5331-00-126-5265?

There are 7 known substitutes for 5331-00-126-5265: 3110-00-227-2510, 6625-00-673-4516, 5950-01-106-6841 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100-127?

Key specifications for 100-127: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 1.418 INCHES MINIMUM AND 1.430 INCHES MAXIMUM IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 3 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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