PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

82161Plunger

Singer Co the · NSN 3520-00-359-7978 · FSC 3520 · No Item Name Available
Verified by PartsTable
NSN 3520-00-359-7978 — this item is cataloged by the U.S. Government under National Stock Number 3520-00-359-7978. Primary manufacturer part number: 82161.
Features
  • Plunger — FSC 3520
  • 1 verified cross-reference
  • Primary manufacturer: Singer Co the
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Plunger, cataloged under National Stock Number 3520-00-359-7978, is classified within Federal Supply Class 3520 (No Item Name Available) of the Service and Trade Equipment group. The primary manufacturer of record is Singer Co the. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePlunger
FSC / FSG3520 — No Item Name Available (FSG 35)
ManufacturersSinger Co the (CAGE 77948)
Technical Specifications
ParameterValue
NSN3520-00-359-7978
Primary Part Number82161
Item NamePlunger
FSC / FSG3520 / 35 — No Item Name Available
ManufacturerSinger Co the
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5305-00-025-765782161 INTERCHANGEABLE
Setscrew
Hamilton Sundstrand Corporation Dba Collins Aerospace
2530-00-278-2248 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
5955-01-088-2904SM-A-942087 INTERCHANGEABLE
Crystal Unit,quartz
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2930-01-163-8153159490-3-3 INTERCHANGEABLE
Cooler,lubricating Oil,engine
Honeywell International Inc. Div Aerospace - Torrance
5325-01-460-5611 INTERCHANGEABLE
Ring,retaining
5220-01-525-990182161 INTERCHANGEABLE
Muzzle Break,alingment Guage
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
82161 Singer Co the (USA)
Related Parts
5305-00-025-7657INTERCHANGEABLE
SETSCREW
82161
2530-00-278-2248INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
5955-01-088-2904INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
SM-A-942087
2930-01-163-8153INTERCHANGEABLE
COOLER,LUBRICATING OIL,ENGINE
159490-3-3
5325-01-460-5611INTERCHANGEABLE
RING,RETAINING
5220-01-525-9901INTERCHANGEABLE
MUZZLE BREAK,ALINGMENT GUAGE
82161

Frequently Asked Questions

What is NSN 3520-00-359-7978?

NSN 3520-00-359-7978 is a Plunger, manufactured by Singer Co the, classified under FSC 3520 (No Item Name Available). Status: active.

What are the part numbers for NSN 3520-00-359-7978?

NSN 3520-00-359-7978 has 1 cross-referenced part number: 82161 (Singer Co the).

What NSN replaces 3520-00-359-7978?

There are 6 known substitutes for 3520-00-359-7978: 5305-00-025-7657, 2530-00-278-2248, 5955-01-088-2904 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com