PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1173Ring Set,piston

Spirolox Inc · NSN 2805-00-390-3331 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-390-3331 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-390-3331. Primary manufacturer part number: 1173.
Features
  • Ring Set,piston — FSC 2805
  • Ring Set Component Parts: COMPRESSION RING,31800ABPAD,95140,1; COMPRESSION RING,31800ERPAD,95140,1; OIL RING 318009A5AC,95140,1
  • Piston Accommodation Quantity: 1
  • Standard Bore Diameter: 3.187 INCHES IN
  • 4 verified cross-references
  • Primary manufacturer: Spirolox Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Set,piston, cataloged under National Stock Number 2805-00-390-3331, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Spirolox Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-390-3331
Primary Part Number1173
Item NameRing Set,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerSpirolox Inc
StatusACTIVE
Ring Set Component PartsCOMPRESSION RING,31800ABPAD,95140,1; COMPRESSION RING,31800ERPAD,95140,1; OIL RING 318009A5AC,95140,1
Piston Accommodation Quantity1
Standard Bore Diameter3.187 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-228-9517 INTERCHANGEABLE
Wrench,box and Open End,combinat
5210-00-239-04897036 INTERCHANGEABLE
Rule,multiple Folding
Kaufman Co
3110-00-277-0682582 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
4730-00-360-52581-41NIPSL0NG INTERCHANGEABLE
Adapter,straight,pipe to Hose
Monarch Mfg Works Inc
5975-00-378-2013 INTERCHANGEABLE
Rod,ground
5120-00-429-96291-173 INTERCHANGEABLE
Adapter,torque Wrench
Chief of Engineers Dept of Army
5910-00-486-9518 INTERCHANGEABLE
Capacitor,variable,mica Dielectr
9540-00-596-2999 INTERCHANGEABLE
Angle,structural
5340-00-598-30725604RH INTERCHANGEABLE
Latch,rim
Eastern Co Div Eberhard Manufacturing
1005-00-731-0855 INTERCHANGEABLE
Spring,windage Knob
Cross-Reference Index
Part NumberManufacturer
1NC6149A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
1173 PRIMARY Spirolox Inc (USA)
582 Dana Corp Engine Products Div (USA)
1NC6149A Ford Motor Company (USA)
Related Parts
5120-00-228-9517INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5210-00-239-0489INTERCHANGEABLE
RULE,MULTIPLE FOLDING
7036
3110-00-277-0682INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
582
4730-00-360-5258INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
1-41NIPSL0NG
5975-00-378-2013INTERCHANGEABLE
ROD,GROUND
5120-00-429-9629INTERCHANGEABLE
ADAPTER,TORQUE WRENCH
1-173
5910-00-486-9518INTERCHANGEABLE
CAPACITOR,VARIABLE,MICA DIELECTR
9540-00-596-2999INTERCHANGEABLE
ANGLE,STRUCTURAL
5340-00-598-3072INTERCHANGEABLE
LATCH,RIM
5604RH
1005-00-731-0855INTERCHANGEABLE
SPRING,WINDAGE KNOB
5905-00-815-1189INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-815-3381INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND

Frequently Asked Questions

What is NSN 2805-00-390-3331?

NSN 2805-00-390-3331 is a Ring Set,piston, manufactured by Spirolox Inc, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-390-3331?

NSN 2805-00-390-3331 has 4 cross-referenced part numbers: 1NC6149A (Ford Motor Co Ford Parts and Service Div Government Part Sales), 1173 (Spirolox Inc), 582 (Dana Corp Engine Products Div), 1NC6149A (Ford Motor Company).

What NSN replaces 2805-00-390-3331?

There are 12 known substitutes for 2805-00-390-3331: 5120-00-228-9517, 5210-00-239-0489, 3110-00-277-0682 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1173?

Key specifications for 1173: Ring Set Component Parts: COMPRESSION RING,31800ABPAD,95140,1; COMPRESSION RING,31800ERPAD,95140,1; OIL RING 318009A5AC,95140,1; Piston Accommodation Quantity: 1; Standard Bore Diameter: 3.187 INCHES 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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