PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P534Piston,internal Combustion Engin

Safeguard Engine Parts Inc Sub of Safeguard Industries Inc · NSN 2805-00-927-0037 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-927-0037 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-927-0037. Primary manufacturer part number: P534.
Features
  • Piston,internal Combustion Engin — FSC 2805
  • Ring Groove Width: 0.0940 INCHES NOMINAL SECOND RING IN
  • Surface Finish: FINISHED
  • Pin: INCLUDED
  • Ring: NOT INCLUDED
  • Carbon Groove: NOT INCLUDED
  • Retaining Ring Groove: NOT INCLUDED
  • Pin Type for Which Designed: FLOATING
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-927-0037, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Safeguard Engine Parts Inc Sub of Safeguard Industries Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-927-0037
Primary Part NumberP534
Item NamePiston,internal Combustion Engin
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerSafeguard Engine Parts Inc Sub of Safeguard Industries Inc
StatusACTIVE
Ring Groove Width0.0940 INCHES NOMINAL SECOND RING IN
Surface FinishFINISHED
PinINCLUDED
RingNOT INCLUDED
Carbon GrooveNOT INCLUDED
Retaining Ring GrooveNOT INCLUDED
Pin Type for Which DesignedFLOATING
Pin Hole BushingNOT INCLUDED
MaterialALUMINUM ALLOY
Ring Groove Diameter3.434 INCHES MINIMUM AND 3.444 INCHES MAXIMUM SECOND RING IN
Ring Groove Width0.0940 INCHES NOMINAL FIRST RING IN
Oil GrooveINCLUDED
Distance From Pin Hole Center to Extreme Top2.007 INCHES MINIMUM AND 2.012 INCHES MAXIMUM IN
Ring Groove Width0.1875 INCHES NOMINAL THIRD RING IN
Ring Groove Diameter3.446 INCHES MINIMUM AND 3.456 INCHES MAXIMUM THIRD RING IN
Pinhole Diameter0.9280 INCHES NOMINAL IN
Head StyleDISH
Ring Groove Quantity3
Cut Depth0.470 INCHES NOMINAL IN
Skirt Bottom Cutaway FeatureINCLUDED
Diameter3.875 INCHES NOMINAL IN
Skirt TypeSOLID
Ring Groove Diameter3.434 INCHES MINIMUM AND 3.444 INCHES MAXIMUM FIRST RING IN
Surface TreatmentTIN
Distance Between Pin Bosses1.300 INCHES NOMINAL IN
Finished Size DesignationSTANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2530-00-737-230311A9487 INTERCHANGEABLE
Piston,hydraulic Brake
Napco International Llc Dba Napco International Inc
2805-00-997-98403831772 INTERCHANGEABLE
Piston,internal Combustion Engin
General Motors Llc Dba General Motors Llc
6140-01-069-737625468-001 INTERCHANGEABLE
Battery,storage
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
Cross-Reference Index
Part NumberManufacturer
3794494 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
P534 PRIMARY Safeguard Engine Parts Inc Sub of Safeguard Industries Inc (USA)
254681 Hyster-Yale Group, Inc. (USA)
3794494 General Motors Llc Dba General Motors Llc (USA)
3794494 General Motors Corp (USA)
909P Hastings Manufacturing Co Div Hastings Manufacturing Company (USA)
Related Parts
2530-00-737-2303INTERCHANGEABLE
PISTON,HYDRAULIC BRAKE
11A9487
2805-00-997-9840INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
3831772
6140-01-069-7376INTERCHANGEABLE
BATTERY,STORAGE
25468-001

Frequently Asked Questions

What is NSN 2805-00-927-0037?

NSN 2805-00-927-0037 is a Piston,internal Combustion Engin, manufactured by Safeguard Engine Parts Inc Sub of Safeguard Industries Inc, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-927-0037?

NSN 2805-00-927-0037 has 6 cross-referenced part numbers: 3794494 (General Motors Corp Chevrolet Motor Div Special Products Dept), P534 (Safeguard Engine Parts Inc Sub of Safeguard Industries Inc), 254681 (Hyster-Yale Group, Inc.), 3794494 (General Motors Llc Dba General Motors Llc), 3794494 (General Motors Corp) and 1 more.

What NSN replaces 2805-00-927-0037?

There are 3 known substitutes for 2805-00-927-0037: 2530-00-737-2303, 2805-00-997-9840, 6140-01-069-7376. Verify interchangeability with system specifications before substitution.

What are the specifications of P534?

Key specifications for P534: Ring Groove Width: 0.0940 INCHES NOMINAL SECOND RING IN; Surface Finish: FINISHED; Pin: INCLUDED; Ring: NOT INCLUDED. 27 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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