PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4917Muffler,valve

Atacs Products, Inc · NSN 4820-01-191-8534 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-191-8534 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-191-8534. Primary manufacturer part number: 4917.
Features
  • Muffler,valve — FSC 4820
  • General Characteristics Item Description: ALUMINUM ALLOY;0.810 IN. DIA. BY 1.620 IN. LONG,HEX 0.810 IN. ACROSS FLATS;MEDIA COMPRESSED AIR IN
  • 3 verified cross-references
  • Primary manufacturer: Atacs Products, Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Muffler,valve, cataloged under National Stock Number 4820-01-191-8534, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Atacs Products, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-191-8534
Primary Part Number4917
Item NameMuffler,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAtacs Products, Inc
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY;0.810 IN. DIA. BY 1.620 IN. LONG,HEX 0.810 IN. ACROSS FLATS;MEDIA COMPRESSED AIR IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5360-00-200-898210W363 INTERCHANGEABLE
Spring,helical,extension
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
5930-00-548-86495729 INTERCHANGEABLE
Switch,rotary
Pax Mfg Corp Hammarlund Mfg Co Div
5975-00-737-68787376878 INTERCHANGEABLE
Ferrule,electrical Conduit
U S Army Tank Automotive Command Amsta-Im-Mm
5330-01-021-08323700043-030 INTERCHANGEABLE
Seal
Evac North America Inc
5905-01-025-90184917 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5120-01-073-0370GS15908-1 INTERCHANGEABLE
Tool,protective,cap
Hamilton Sundstrand Corporation Dba Collins Aerospace
6130-01-119-7670491-7 INTERCHANGEABLE
Power Supply
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
1005-01-466-1096 INTERCHANGEABLE
Shotgun,12 Gage
6640-01-557-4355220273 INTERCHANGEABLE
Paper,chart,incubator,blood Plat
Helmer Scientific Llc Dba Helmer
Cross-Reference Index
Part NumberManufacturer
4917 Atacs Products, Inc (USA)
7M759-1 The Boeing Company Div Defense (USA)
7M759 The Boeing Company Div Defense (USA)
Related Parts
5360-00-200-8982INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
10W363
5930-00-548-8649INTERCHANGEABLE
SWITCH,ROTARY
5729
5975-00-737-6878INTERCHANGEABLE
FERRULE,ELECTRICAL CONDUIT
7376878
5330-01-021-0832INTERCHANGEABLE
SEAL
3700043-030
5905-01-025-9018INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4917
5120-01-073-0370INTERCHANGEABLE
TOOL,PROTECTIVE,CAP
GS15908-1
6130-01-119-7670INTERCHANGEABLE
POWER SUPPLY
491-7
1005-01-466-1096INTERCHANGEABLE
SHOTGUN,12 GAGE
6640-01-557-4355INTERCHANGEABLE
PAPER,CHART,INCUBATOR,BLOOD PLAT
220273

Frequently Asked Questions

What is NSN 4820-01-191-8534?

NSN 4820-01-191-8534 is a Muffler,valve, manufactured by Atacs Products, Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-191-8534?

NSN 4820-01-191-8534 has 3 cross-referenced part numbers: 4917 (Atacs Products, Inc), 7M759-1 (The Boeing Company Div Defense), 7M759 (The Boeing Company Div Defense).

What NSN replaces 4820-01-191-8534?

There are 9 known substitutes for 4820-01-191-8534: 5360-00-200-8982, 5930-00-548-8649, 5975-00-737-6878 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4917?

Key specifications for 4917: General Characteristics Item Description: ALUMINUM ALLOY;0.810 IN. DIA. BY 1.620 IN. LONG,HEX 0.810 IN. ACROSS FLATS;MEDIA COMPRESSED AIR IN. 1 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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