PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1031O-Ring

Husco International Inc · NSN 5331-00-620-5700 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-620-5700 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-620-5700. Primary manufacturer part number: 1031.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.125 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Outside Diameter: 2.012 INCHES NOMINAL IN
  • Center Hole Diameter: 1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
  • 15 verified cross-references
  • Primary manufacturer: Husco International 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 5331-00-620-5700, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Husco International Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 13 manufacturers, 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
NSN5331-00-620-5700
Primary Part Number1031
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHusco International Inc
StatusCANCELLED
Cross-Sectional Height0.125 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Outside Diameter2.012 INCHES NOMINAL IN
Center Hole Diameter1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-081-40428215931 INTERCHANGEABLE
O-Ring
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
4510-00-242-4357S82 INTERCHANGEABLE
Stopper,waste Drain
Kirkhill Inc
5306-00-286-150911676A INTERCHANGEABLE
Bolt,machine
Brinkley Technology Group Llc Dba Hercules Manufacturing
5950-00-404-1395 INTERCHANGEABLE
Transformer,power
9540-00-541-7431 INTERCHANGEABLE
Beam,structural
6250-00-569-9502 INTERCHANGEABLE
Ballast,lamp
5331-00-641-34072-224N304-75 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5950-00-943-3965151-019-0002 INTERCHANGEABLE
Transformer,pulse
Northrop Grumman Systems Corporation
5975-00-965-8334SS82 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5950-01-074-454811735 INTERCHANGEABLE
Reactor
Sora Power Inc. Dba Sigma Division
Cross-Reference Index
Part NumberManufacturer
S8-2 Houghton International Inc. (USA)
130201 Komatsu American Intl Co (USA)
AN6230-2 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
1031 PRIMARY Husco International Inc (USA)
S8-2 Loed Corp the Wausau Products Div (USA)
AS568-224 Sae International Dba Sae International (USA)
4563P11 PRIMARY Taylor Machine Works Inc (USA)
290987R1 Cnh Uk Limited (GBR)
290987R1 Navistar International Corporation Dba Navistar (USA)
290987R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
AS568-224 Society of Automotive Engineers Inc (USA)
44,04X3,53-20B9 Stacem (FRA)
1866-2 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
5331PL0891700 Jednolity Indeks Materialowy - Uniform Material Index (POL)
290987R1 Komatsu American Intl Co (USA)
Related Parts
5331-00-081-4042INTERCHANGEABLE
O-RING
8215931
4510-00-242-4357INTERCHANGEABLE
STOPPER,WASTE DRAIN
S82
5306-00-286-1509INTERCHANGEABLE
BOLT,MACHINE
11676A
5950-00-404-1395INTERCHANGEABLE
TRANSFORMER,POWER
9540-00-541-7431INTERCHANGEABLE
BEAM,STRUCTURAL
6250-00-569-9502INTERCHANGEABLE
BALLAST,LAMP
5331-00-641-3407INTERCHANGEABLE
O-RING
2-224N304-75
5950-00-943-3965INTERCHANGEABLE
TRANSFORMER,PULSE
151-019-0002
5975-00-965-8334INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
SS82
5950-01-074-4548INTERCHANGEABLE
REACTOR
11735
5331-01-078-8854INTERCHANGEABLE
O-RING
6515-01-284-4167INTERCHANGEABLE
WIRE,BONE
00-0186-062-00

Frequently Asked Questions

What is NSN 5331-00-620-5700?

NSN 5331-00-620-5700 is a O-Ring, manufactured by Husco International Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-620-5700?

NSN 5331-00-620-5700 has 15 cross-referenced part numbers: S8-2 (Houghton International Inc.), 130201 (Komatsu American Intl Co), AN6230-2 (Strohmeyer, Julie a. Dba Julie a. Strohmeyer), 1031 (Husco International Inc), S8-2 (Loed Corp the Wausau Products Div) and 10 more.

What NSN replaces 5331-00-620-5700?

There are 12 known substitutes for 5331-00-620-5700: 5331-00-081-4042, 4510-00-242-4357, 5306-00-286-1509 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1031?

Key specifications for 1031: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Outside Diameter: 2.012 INCHES NOMINAL IN; Center Hole Diameter: 1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-620-5700 still in active supply?

NSN 5331-00-620-5700 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.
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