PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-52Plunger,detent

Napco Intl Inc · NSN 5340-00-949-9637 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-949-9637 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-949-9637. Primary manufacturer part number: S-52.
Features
  • Plunger,detent — FSC 5340
  • Diameter: 0.190 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Material: STEEL OVERALL
  • Length: 0.870 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • 2 verified cross-references
  • Primary manufacturer: Napco Intl Inc
Applications
  • Applications requiring Steel Overall construction
General Description

The Plunger,detent, cataloged under National Stock Number 5340-00-949-9637, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco Intl Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-949-9637
Primary Part NumberS-52
Item NamePlunger,detent
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNapco Intl Inc
StatusACTIVE
Diameter0.190 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MaterialSTEEL OVERALL
Length0.870 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 6
6240-00-155-790452 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
3455-00-250-07711743-0375 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
6625-00-420-3862S52 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Tektronix, Inc.
5340-00-527-9912S52 INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
6680-00-766-1880321094-1 INTERCHANGEABLE
Indicator,sight,liquid
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
6680-00-840-5573S52K INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
Cross-Reference Index
Part NumberManufacturer
S-52 PRIMARY Napco Intl Inc (USA)
10531800 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
Related Parts
6240-00-155-7904INTERCHANGEABLE
LAMP,INCANDESCENT
52
3455-00-250-0771INTERCHANGEABLE
CUTTER,MILLING,END
1743-0375
6625-00-420-3862INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
S52
5340-00-527-9912INTERCHANGEABLE
PLUNGER,QUICK RELEASE
S52
6680-00-766-1880INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
321094-1
6680-00-840-5573INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S52K

Frequently Asked Questions

What is NSN 5340-00-949-9637?

NSN 5340-00-949-9637 is a Plunger,detent, manufactured by Napco Intl Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-949-9637?

NSN 5340-00-949-9637 has 2 cross-referenced part numbers: S-52 (Napco Intl Inc), 10531800 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).

What NSN replaces 5340-00-949-9637?

There are 6 known substitutes for 5340-00-949-9637: 6240-00-155-7904, 3455-00-250-0771, 6625-00-420-3862 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S-52?

Key specifications for S-52: Diameter: 0.190 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Material: STEEL OVERALL; Length: 0.870 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Special Features: USED ON THE M551. 4 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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