PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85878Collar,shaft

Ashcroft Inc Dba Heise · NSN 3040-01-174-0678 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-174-0678 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-174-0678. Primary manufacturer part number: 85878.
Features
  • Collar,shaft — FSC 3040
  • Bore Diameter: 0.6250 INCHES NOMINAL IN
  • Material: STEEL
  • Nominal Thread Size: 0.164 INCHES SINGLE HOLE IN
  • Securing Hole Type and Location: THREADED SINGLE HOLE
  • Style Designator: PLAIN ROUND
  • Outside Diameter: 1.000 INCHES NOMINAL IN
  • Securing Hole Quantity: 1
Applications
  • Applications requiring Steel construction
General Description

The Collar,shaft, cataloged under National Stock Number 3040-01-174-0678, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-174-0678
Primary Part Number85878
Item NameCollar,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Bore Diameter0.6250 INCHES NOMINAL IN
MaterialSTEEL
Nominal Thread Size0.164 INCHES SINGLE HOLE IN
Securing Hole Type and LocationTHREADED SINGLE HOLE
Style DesignatorPLAIN ROUND
Outside Diameter1.000 INCHES NOMINAL IN
Securing Hole Quantity1
Screw Thread Series Designator and LocationSINGLE HOLE UNIFIED NATIONAL COARSE (UNC)
Thickness0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-036-2051 INTERCHANGEABLE
Stem,fluid Valve
4820-00-169-5316 INTERCHANGEABLE
Valve,safety Relief
3040-01-170-245886074 INTERCHANGEABLE
Collar,shaft
Ashcroft Inc Dba Heise
4820-01-171-5058VY897 INTERCHANGEABLE
Indicator,valve
Ashcroft Inc Dba Heise
4820-01-171-50775V0G72 PIECE 6A INTERCHANGEABLE
Stem,fluid Valve
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
85878 Ashcroft Inc Dba Heise (USA)
85878 Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
3299575 Naval Ship Systems Command (USA)
SV0G72 PIECE 6C Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
5V0G72 Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
5V0G72 PIECE 6C Ashcroft Inc Dba Heise (USA)
Related Parts
4820-00-036-2051INTERCHANGEABLE
STEM,FLUID VALVE
4820-00-169-5316INTERCHANGEABLE
VALVE,SAFETY RELIEF
3040-01-170-2458INTERCHANGEABLE
COLLAR,SHAFT
86074
4820-01-171-5058INTERCHANGEABLE
INDICATOR,VALVE
VY897
4820-01-171-5077INTERCHANGEABLE
STEM,FLUID VALVE
5V0G72 PIECE 6A

Frequently Asked Questions

What is NSN 3040-01-174-0678?

NSN 3040-01-174-0678 is a Collar,shaft, manufactured by Ashcroft Inc Dba Heise, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-174-0678?

NSN 3040-01-174-0678 has 6 cross-referenced part numbers: 85878 (Ashcroft Inc Dba Heise), 85878 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse), 3299575 (Naval Ship Systems Command), SV0G72 PIECE 6C (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse), 5V0G72 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse) and 1 more.

What NSN replaces 3040-01-174-0678?

There are 5 known substitutes for 3040-01-174-0678: 4820-00-036-2051, 4820-00-169-5316, 3040-01-170-2458 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 85878?

Key specifications for 85878: Bore Diameter: 0.6250 INCHES NOMINAL IN; Material: STEEL; Nominal Thread Size: 0.164 INCHES SINGLE HOLE IN; Securing Hole Type and Location: THREADED SINGLE HOLE. 9 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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