PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B19782Piston,compressor

Drs Environmental Systems Inc · NSN 4310-00-392-5318 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-392-5318 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-392-5318. Primary manufacturer part number: B19782.
Features
  • Piston,compressor — FSC 4310
  • Retaining Ring Groove: INCLUDED
  • Head Style: FLAT
  • Ring Groove Position and Quantity: NUMBER 1 AND NUMBER 2 PISTON
  • Ring: NOT INCLUDED
  • Distance From Pin Hole Center to Extreme Top: 3.500 INCHES NOMINAL IN
  • Integral Connecting Rod: NOT INCLUDED
  • Oil Passage Type: HOLE
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Piston,compressor, cataloged under National Stock Number 4310-00-392-5318, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-392-5318
Primary Part NumberB19782
Item NamePiston,compressor
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusACTIVE
Retaining Ring GrooveINCLUDED
Head StyleFLAT
Ring Groove Position and QuantityNUMBER 1 AND NUMBER 2 PISTON
RingNOT INCLUDED
Distance From Pin Hole Center to Extreme Top3.500 INCHES NOMINAL IN
Integral Connecting RodNOT INCLUDED
Oil Passage TypeHOLE
Ring Groove Quantity2
Skirt Bottom Cutaway FeatureINCLUDED
Skirt TypeSOLID
Diameter5.250 INCHES NOMINAL IN
Oil GrooveINCLUDED
Pin Hole BushingNOT INCLUDED
PinNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5305-00-021-6390 INTERCHANGEABLE
Screw,cap,hexagon Head
5133-00-113-4845 INTERCHANGEABLE
Drill,twist
3120-00-410-6528 INTERCHANGEABLE
Shell,rear Bearing
4720-01-193-2592 INTERCHANGEABLE
Hose Assembly,nonmetallic
5950-01-217-86274018450 INTERCHANGEABLE
Transformer,power
Honeywell International Inc. Dba Honeywell International
8115-01-394-98625026-0909 INTERCHANGEABLE
Box,micro Tube Storage
Nalge Co Div of Sybron Corp
Cross-Reference Index
Part NumberManufacturer
B19782 Drs Environmental Systems Inc (USA)
19782 Davey Compressor Co Div of Keco Industries Inc (USA)
B19782 Davey Compressor Co Div of Keco Industries Inc (USA)
14552 Drs Environmental Systems Inc (USA)
14552 Davey Compressor Co Div of Keco Industries Inc (USA)
19782 Drs Environmental Systems Inc (USA)
Related Parts
5305-00-021-6390INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5133-00-113-4845INTERCHANGEABLE
DRILL,TWIST
3120-00-410-6528INTERCHANGEABLE
SHELL,REAR BEARING
4720-01-193-2592INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5950-01-217-8627INTERCHANGEABLE
TRANSFORMER,POWER
4018450
8115-01-394-9862INTERCHANGEABLE
BOX,MICRO TUBE STORAGE
5026-0909

Frequently Asked Questions

What is NSN 4310-00-392-5318?

NSN 4310-00-392-5318 is a Piston,compressor, manufactured by Drs Environmental Systems Inc, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-392-5318?

NSN 4310-00-392-5318 has 6 cross-referenced part numbers: B19782 (Drs Environmental Systems Inc), 19782 (Davey Compressor Co Div of Keco Industries Inc), B19782 (Davey Compressor Co Div of Keco Industries Inc), 14552 (Drs Environmental Systems Inc), 14552 (Davey Compressor Co Div of Keco Industries Inc) and 1 more.

What NSN replaces 4310-00-392-5318?

There are 6 known substitutes for 4310-00-392-5318: 5305-00-021-6390, 5133-00-113-4845, 3120-00-410-6528 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B19782?

Key specifications for B19782: Retaining Ring Groove: INCLUDED; Head Style: FLAT; Ring Groove Position and Quantity: NUMBER 1 AND NUMBER 2 PISTON; Ring: NOT INCLUDED. 15 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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