PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15420Lapping Tool

Ashcroft Inc Dba Heise · NSN 5120-00-316-5227 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-316-5227 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-316-5227. Primary manufacturer part number: 15420.
Features
  • Lapping Tool — FSC 5120
  • 2 verified cross-references
  • Primary manufacturer: Ashcroft Inc Dba Heise
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Lapping Tool, cataloged under National Stock Number 5120-00-316-5227, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ashcroft Inc Dba Heise. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameLapping Tool
FSC / FSG5120 — No Item Name Available (FSG 51)
ManufacturersAshcroft Inc Dba Heise (CAGE 38056); Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (CAGE 16497)
Technical Specifications
ParameterValue
NSN5120-00-316-5227
Primary Part Number15420
Item NameLapping Tool
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1650-00-073-915215420 INTERCHANGEABLE
Accumulator,hydraulic
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3455-00-228-529415420 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5975-00-281-0021S154-2064 INTERCHANGEABLE
Conduit,metal,flexible
Vse Aviation, Inc.
1650-00-438-390915420 INTERCHANGEABLE
Seat,relief Valve
Hydro-Aire Aerospace Corp
5136-00-604-641015420 INTERCHANGEABLE
Die Head,hand
Curtis-Toledo, Inc.
3020-00-725-3849154-20 INTERCHANGEABLE
Gear,spur
Southern Gear & Machine Inc
4820-00-793-293515420 INTERCHANGEABLE
Body,valve
Mission Systems Orchard Park Inc
5961-00-904-51436054-102-2 INTERCHANGEABLE
Transistor
B.c. Systems Inc. Dba Bc Systems Inc
5935-01-155-927915420 INTERCHANGEABLE
Plug,tip
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
1660-01-204-9377 INTERCHANGEABLE
Duct Assembly,air Conditioning-H
Cross-Reference Index
Part NumberManufacturer
15420 Ashcroft Inc Dba Heise (USA)
15420 Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
Related Parts
1650-00-073-9152INTERCHANGEABLE
ACCUMULATOR,HYDRAULIC
15420
3455-00-228-5294INTERCHANGEABLE
CUTTER,MILLING,END
15420
5975-00-281-0021INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
S154-2064
1650-00-438-3909INTERCHANGEABLE
SEAT,RELIEF VALVE
15420
5136-00-604-6410INTERCHANGEABLE
DIE HEAD,HAND
15420
3020-00-725-3849INTERCHANGEABLE
GEAR,SPUR
154-20
4820-00-793-2935INTERCHANGEABLE
BODY,VALVE
15420
5961-00-904-5143INTERCHANGEABLE
TRANSISTOR
6054-102-2
5935-01-155-9279INTERCHANGEABLE
PLUG,TIP
15420
1660-01-204-9377INTERCHANGEABLE
DUCT ASSEMBLY,AIR CONDITIONING-H
3030-01-223-0574INTERCHANGEABLE
BELT,V
15420
6515-01-545-5192INTERCHANGEABLE
AIRWAY SET,ORAL
15420

Frequently Asked Questions

What is NSN 5120-00-316-5227?

NSN 5120-00-316-5227 is a Lapping Tool, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-316-5227?

NSN 5120-00-316-5227 has 2 cross-referenced part numbers: 15420 (Ashcroft Inc Dba Heise), 15420 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse).

What NSN replaces 5120-00-316-5227?

There are 12 known substitutes for 5120-00-316-5227: 1650-00-073-9152, 3455-00-228-5294, 5975-00-281-0021 and 9 more. Verify interchangeability with system specifications before substitution.

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