PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

845-00O-Ring

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 5331-00-814-2347 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-814-2347 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-814-2347. Primary manufacturer part number: 845-00.
Features
  • O-Ring — FSC 5331
  • Elongation Percentage: 160 MAXIMUM
  • Center Hole Diameter: 1.979 INCHES MINIMUM AND 1.999 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
  • Material: RUBBER SYNTHETIC
  • Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
  • Outside Diameter: 2.129 INCHES NOMINAL IN
  • 20 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-814-2347, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 5 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
NSN5331-00-814-2347
Primary Part Number845-00
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusCANCELLED
Elongation Percentage160 MAXIMUM
Center Hole Diameter1.979 INCHES MINIMUM AND 1.999 INCHES MAXIMUM IN
Cross-Sectional Height0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC
Temp Rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
Outside Diameter2.129 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6635-00-018-5842 INTERCHANGEABLE
Viewer,x-Ray Film
3110-00-100-0606 INTERCHANGEABLE
Cup,tapered Roller Bearing
6625-00-244-165661-065 INTERCHANGEABLE
Indicator,line Voltage
Ideal Industries, Inc.
2910-00-358-4317 INTERCHANGEABLE
Bowl,sediment
3030-00-528-3770 INTERCHANGEABLE
Belt,v
5840-00-539-7911SCA46627 INTERCHANGEABLE
Radar Set
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4910-00-906-04121228-10 INTERCHANGEABLE
Clamp,radiator Tank
Therm Processes Inc
5330-00-931-796161065 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5331-01-057-3133MS28775-033 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-197-2590 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
31HCS18PC145 Aurora Pump a Unit of General Signal Corp (USA)
MS28775-033 Zf Industrieantriebe Witten Gmbh (DEU)
31HCS18PC145 General Signal Corp (USA)
6-10-65 General Signal Corp (USA)
31HCS21PC145 General Signal Corp (USA)
31FCS22PC145 Aurora Pump a Unit of General Signal Corp (USA)
ARP568-033MILP5 516-70 Zf Industrieantriebe Witten Gmbh (DEU)
31FCS22PC145 General Signal Corp (USA)
31HCS17PC145 Aurora Pump a Unit of General Signal Corp (USA)
40400-4 FIND NO 20 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
6-10-65 Aurora Pump a Unit of General Signal Corp (USA)
845-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
31FCS22PC145 Carver Pump Company (USA)
ARP568-033M1LP5 516-70 Zf Industrieantriebe Witten Gmbh (DEU)
31HCS17PC145 General Signal Corp (USA)
31HCS21PC145 Aurora Pump a Unit of General Signal Corp (USA)
31HCS17PC145 Carver Pump Company (USA)
6-10-65 Carver Pump Company (USA)
31HCS18PC145 Carver Pump Company (USA)
31HCS21PC145 Carver Pump Company (USA)
Related Parts
6635-00-018-5842INTERCHANGEABLE
VIEWER,X-RAY FILM
3110-00-100-0606INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
6625-00-244-1656INTERCHANGEABLE
INDICATOR,LINE VOLTAGE
61-065
2910-00-358-4317INTERCHANGEABLE
BOWL,SEDIMENT
3030-00-528-3770INTERCHANGEABLE
BELT,V
5840-00-539-7911INTERCHANGEABLE
RADAR SET
SCA46627
4910-00-906-0412INTERCHANGEABLE
CLAMP,RADIATOR TANK
1228-10
5330-00-931-7961INTERCHANGEABLE
SEAL,PLAIN ENCASED
61065
5331-01-057-3133INTERCHANGEABLE
O-RING
MS28775-033
5331-01-197-2590INTERCHANGEABLE
O-RING
2815-01-303-1180INTERCHANGEABLE
SCREW,ADJUSTING,VALVE TAPPET
84500
6520-01-491-8069INTERCHANGEABLE
VIBRATOR,DENTAL MOLDING

Frequently Asked Questions

What is NSN 5331-00-814-2347?

NSN 5331-00-814-2347 is a O-Ring, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-814-2347?

NSN 5331-00-814-2347 has 20 cross-referenced part numbers: 31HCS18PC145 (Aurora Pump a Unit of General Signal Corp), MS28775-033 (Zf Industrieantriebe Witten Gmbh), 31HCS18PC145 (General Signal Corp), 6-10-65 (General Signal Corp), 31HCS21PC145 (General Signal Corp) and 15 more.

What NSN replaces 5331-00-814-2347?

There are 12 known substitutes for 5331-00-814-2347: 6635-00-018-5842, 3110-00-100-0606, 6625-00-244-1656 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 845-00?

Key specifications for 845-00: Elongation Percentage: 160 MAXIMUM; Center Hole Diameter: 1.979 INCHES MINIMUM AND 1.999 INCHES MAXIMUM IN; Cross-Sectional Height: 0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-814-2347 still in active supply?

NSN 5331-00-814-2347 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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