PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6278E74-P17O-Ring

Fluor Marine Propulsion, Llc · NSN 5331-01-556-0453 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-556-0453 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-556-0453. Primary manufacturer part number: 6278E74-P17.
Features
  • O-Ring — FSC 5331
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Fluor Marine Propulsion, Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-556-0453, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Fluor Marine Propulsion, Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-556-0453
Primary Part Number6278E74-P17
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFluor Marine Propulsion, Llc
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2915-00-166-5392 INTERCHANGEABLE
Liner,fuel Pump
5210-00-229-304137-24 INTERCHANGEABLE
Caliper,inside
L.s. Starrett Company (the) Div Tool Division
4510-00-316-01013924 INTERCHANGEABLE
Aerator,faucet
Moen Inc
5945-00-500-62316782647 INTERCHANGEABLE
Relay,electromagnetic
Allison Transmission Inc Dba Allison Transmission, Inc
5930-00-763-845712483 INTERCHANGEABLE
Switch,push
Giga-Tronics Incorporated Dba Giga-Tronics
5331-01-037-0799 INTERCHANGEABLE
O-Ring
4510-01-250-51673924 INTERCHANGEABLE
Drain,sink
T and S Brass and Bronze Works Inc
6515-01-428-35533924 INTERCHANGEABLE
Cartridge,stapler,s
3m Company Div Health Care Business
Cross-Reference Index
Part NumberManufacturer
6278E74-P17 Fluor Marine Propulsion, Llc (USA)
3-924 Parker-Hannifin Corp Div O-Ring Division (USA)
Related Parts
2915-00-166-5392INTERCHANGEABLE
LINER,FUEL PUMP
5210-00-229-3041INTERCHANGEABLE
CALIPER,INSIDE
37-24
4510-00-316-0101INTERCHANGEABLE
AERATOR,FAUCET
3924
5945-00-500-6231INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
6782647
5930-00-763-8457INTERCHANGEABLE
SWITCH,PUSH
12483
5331-01-037-0799INTERCHANGEABLE
O-RING
4510-01-250-5167INTERCHANGEABLE
DRAIN,SINK
3924
6515-01-428-3553INTERCHANGEABLE
CARTRIDGE,STAPLER,S
3924

Frequently Asked Questions

What is NSN 5331-01-556-0453?

NSN 5331-01-556-0453 is a O-Ring, manufactured by Fluor Marine Propulsion, Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-556-0453?

NSN 5331-01-556-0453 has 2 cross-referenced part numbers: 6278E74-P17 (Fluor Marine Propulsion, Llc), 3-924 (Parker-Hannifin Corp Div O-Ring Division).

What NSN replaces 5331-01-556-0453?

There are 8 known substitutes for 5331-01-556-0453: 2915-00-166-5392, 5210-00-229-3041, 4510-00-316-0101 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6278E74-P17?

Key specifications for 6278E74-P17: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 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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