PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1878Ring,externally Threaded

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 5365-00-264-7228 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-264-7228 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-264-7228. Primary manufacturer part number: 1878.
Features
  • Ring,externally Threaded — FSC 5365
  • Width: 0.375 INCHES NOMINAL IN
  • Accommodation Type and Quantity: 2 SLOTS
  • Angle Between Accommodations in Deg: 180.0
  • Beveled Thread: NOT INCLUDED
  • Bore Annular Internal Serration: NOT INCLUDED
  • FSC Application Data: VALVE GROUP,AIR COMPRESSOR
  • Setscrew Locking Notch: NOT INCLUDED
Applications
  • Applications requiring Steel Comp 1015 construction
General Description

The Ring,externally Threaded, cataloged under National Stock Number 5365-00-264-7228, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5365-00-264-7228
Primary Part Number1878
Item NameRing,externally Threaded
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusCANCELLED
Width0.375 INCHES NOMINAL IN
Accommodation Type and Quantity2 SLOTS
Angle Between Accommodations in Deg180.0
Beveled ThreadNOT INCLUDED
Bore Annular Internal SerrationNOT INCLUDED
FSC Application DataVALVE GROUP,AIR COMPRESSOR
Setscrew Locking NotchNOT INCLUDED
Surface TreatmentZINC
MaterialSTEEL COMP 1015
Depth0.313 INCHES NOMINAL IN
Thread Class2A A
Casehardening IndicatorNOT CASEHARDENED
Bore ShapeSTRAIGHT
Drive TypeSLOTTED FACE
Thread Size2 IN. - 12 IN
Screw Thread Series DesignatorUN OR N
Thread DirectionRIGHT-HAND
Bore Diameter1.500 INCHES MINIMUM AND 1.504 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5136-00-264-5553 INTERCHANGEABLE
Tap,thread Cutting
6145-00-397-30521878 INTERCHANGEABLE
Wire,electrical
Belden, Inc.
5310-00-515-8885110110 INTERCHANGEABLE
Washer,flat
Borg-Warner Corp
5365-00-827-2224DS-931343 INTERCHANGEABLE
Bushing,compensator
Eaton Aerospace, Llc Dba Jackson South
5315-01-145-06821878 INTERCHANGEABLE
Pin,cotter
Eaton Aerospace, Llc Dba Jackson South
6550-01-154-92136902525 INTERCHANGEABLE
Antibody Enhancement Test Reagen
Ortho-Clinical Diagnostics Inc Dba Ortho-Clinical Diagnostics Inc
2590-01-601-51411878 INTERCHANGEABLE
Scania Turret Brack
Bmi Defense Systems, Inc
Cross-Reference Index
Part NumberManufacturer
1878 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
5136-00-264-5553INTERCHANGEABLE
TAP,THREAD CUTTING
6145-00-397-3052INTERCHANGEABLE
WIRE,ELECTRICAL
1878
5310-00-515-8885INTERCHANGEABLE
WASHER,FLAT
110110
5365-00-827-2224INTERCHANGEABLE
BUSHING,COMPENSATOR
DS-931343
5315-01-145-0682INTERCHANGEABLE
PIN,COTTER
1878
6550-01-154-9213INTERCHANGEABLE
ANTIBODY ENHANCEMENT TEST REAGEN
6902525
2590-01-601-5141INTERCHANGEABLE
SCANIA TURRET BRACK
1878

Frequently Asked Questions

What is NSN 5365-00-264-7228?

NSN 5365-00-264-7228 is a Ring,externally Threaded, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 5365 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5365-00-264-7228?

NSN 5365-00-264-7228 has 1 cross-referenced part number: 1878 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 5365-00-264-7228?

There are 7 known substitutes for 5365-00-264-7228: 5136-00-264-5553, 6145-00-397-3052, 5310-00-515-8885 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1878?

Key specifications for 1878: Width: 0.375 INCHES NOMINAL IN; Overall Length: 0.875 INCHES NOMINAL IN; Accommodation Type and Quantity: 2 SLOTS; Angle Between Accommodations in Deg: 180.0. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5365-00-264-7228 still in active supply?

NSN 5365-00-264-7228 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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