PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15546Ring,externally Threaded

Ashcroft Inc Dba Heise · NSN 5365-01-174-8873 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-174-8873 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-174-8873. Primary manufacturer part number: 15546.
Features
  • Ring,externally Threaded — FSC 5365
  • Screw Thread Series Designator: UN
  • Bore Diameter: 1.375 INCHES NOMINAL IN
  • Beveled Thread: NOT INCLUDED
  • Bore Annular Internal Serration: NOT INCLUDED
  • Radius From Geometric Axis to Accommodation: 1.188 INCHES NOMINAL IN
  • Setscrew Locking Notch: NOT INCLUDED
  • Angle Between Accommodations in Deg: 90.0 AND 180.0
Applications
  • Applications requiring Steel Comp 202 or Steel Comp 302 or Steel Comp 303 or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 309 or Steel Comp 310 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 322 or Steel Comp 324 or Steel Comp 347 or Steel Comp 633 or Steel Comp 634 or Steel Comp 403 or Steel Comp 405 or Steel Comp 410 or Steel Comp 414 or Steel Comp 416 or Steel Comp 416SE or Steel Comp 420 or Steel Comp 430 or Steel Comp 430f or Steel Comp 430FSE or Steel Comp 431 or Steel Comp 440A or Steel Comp 440b or Steel Comp 440c or Steel Comp 440f or Steel Comp 440FSE or Steel Comp 446 construction
General Description

The Ring,externally Threaded, cataloged under National Stock Number 5365-01-174-8873, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN5365-01-174-8873
Primary Part Number15546
Item NameRing,externally Threaded
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Screw Thread Series DesignatorUN
Bore Diameter1.375 INCHES NOMINAL IN
Beveled ThreadNOT INCLUDED
Bore Annular Internal SerrationNOT INCLUDED
Radius From Geometric Axis to Accommodation1.188 INCHES NOMINAL IN
Setscrew Locking NotchNOT INCLUDED
Angle Between Accommodations in Deg90.0 AND 180.0
Accommodation Type and Quantity3 HOLES
MaterialSTEEL COMP 202 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 322 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 633 OR STEEL COMP 634 OR STEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OR STEEL COMP 414 OR STEEL COMP 416 OR STEEL COMP 416SE OR STEEL COMP 420 OR STEEL COMP 430 OR STEEL COMP 430F OR STEEL COMP 430FSE OR STEEL COMP 431 OR STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OR STEEL COMP 440F OR STEEL COMP 440FSE OR STEEL COMP 446 A
Casehardening IndicatorNOT CASEHARDENED
Depth0.250 INCHES NOMINAL IN
Thread Class2A A
Thread Size3.000-16
Thread DirectionRIGHT-HAND
Drive TypeDRILLED FACE
Bore ShapeSTRAIGHT
Diameter0.129 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3040-00-345-5990140-3 INTERCHANGEABLE
Gearshaft,spur
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5310-00-384-4787203562PC11 INTERCHANGEABLE
Nut,adjusting
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-540-4656310 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5977-00-620-6588 INTERCHANGEABLE
Brush,electrical Contact
5950-00-627-0319712095-001 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Div Rmd Strategic
5365-00-824-156115546 INTERCHANGEABLE
Spacer,sleeve
Grimes Aerospace Company
5136-00-825-7093 INTERCHANGEABLE
Tap,thread Cutting
5930-00-872-647515946 INTERCHANGEABLE
Switch,thermostatic
Clayton Manufacturing Company
5950-01-046-608515946 INTERCHANGEABLE
Transformer
Meggitt (new Hampshire), Inc
6685-01-136-976315946 INTERCHANGEABLE
Indicator,temperature,synchro
Alturdyne International
Cross-Reference Index
Part NumberManufacturer
15946 Ashcroft Inc Dba Heise (USA)
5V0G72 PIECE 7C Ashcroft Inc Dba Heise (USA)
15546 PRIMARY Ashcroft Inc Dba Heise (USA)
Related Parts
3040-00-345-5990INTERCHANGEABLE
GEARSHAFT,SPUR
140-3
5310-00-384-4787INTERCHANGEABLE
NUT,ADJUSTING
203562PC11
3110-00-540-4656INTERCHANGEABLE
BEARING,BALL,ANNULAR
310
5977-00-620-6588INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5950-00-627-0319INTERCHANGEABLE
COIL,RADIO FREQUENCY
712095-001
5365-00-824-1561INTERCHANGEABLE
SPACER,SLEEVE
15546
5136-00-825-7093INTERCHANGEABLE
TAP,THREAD CUTTING
5930-00-872-6475INTERCHANGEABLE
SWITCH,THERMOSTATIC
15946
5950-01-046-6085INTERCHANGEABLE
TRANSFORMER
15946
6685-01-136-9763INTERCHANGEABLE
INDICATOR,TEMPERATURE,SYNCHRO
15946
3020-01-319-0813INTERCHANGEABLE
GEAR,WORM WHEEL
050680
6240-01-344-9535INTERCHANGEABLE
LAMP,FLUORESCENT

Frequently Asked Questions

What is NSN 5365-01-174-8873?

NSN 5365-01-174-8873 is a Ring,externally Threaded, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-174-8873?

NSN 5365-01-174-8873 has 3 cross-referenced part numbers: 15946 (Ashcroft Inc Dba Heise), 5V0G72 PIECE 7C (Ashcroft Inc Dba Heise), 15546 (Ashcroft Inc Dba Heise).

What NSN replaces 5365-01-174-8873?

There are 12 known substitutes for 5365-01-174-8873: 3040-00-345-5990, 5310-00-384-4787, 3110-00-540-4656 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15546?

Key specifications for 15546: Screw Thread Series Designator: UN; Bore Diameter: 1.375 INCHES NOMINAL IN; Beveled Thread: NOT INCLUDED; Bore Annular Internal Serration: NOT INCLUDED. 19 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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