PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138-01Mask,oxygen

Avox Systems Inc Dba Avox Systems Inc · NSN 1660-01-641-4086 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-641-4086 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-641-4086. Primary manufacturer part number: 138-01.
Features
  • Mask,oxygen — FSC 1660
  • Headband: PROVIDED
  • Design Type: NOSE
  • 1 verified cross-reference
  • Primary manufacturer: Avox Systems Inc Dba Avox Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mask,oxygen, cataloged under National Stock Number 1660-01-641-4086, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN1660-01-641-4086
Primary Part Number138-01
Item NameMask,oxygen
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
HeadbandPROVIDED
Design TypeNOSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5306-00-099-503313801 INTERCHANGEABLE
Bolt,special
Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd
5120-00-198-5400 INTERCHANGEABLE
Key,socket Head Screw
4940-00-242-1448 INTERCHANGEABLE
Blast Cleaning Machine
6680-00-399-277713801 INTERCHANGEABLE
Transmission Unit
Simmonds Precision Products Inc
5975-00-415-60581521-DC INTERCHANGEABLE
Nipple,electrical Conduit
Gordon Electric Supply Inc
5331-00-531-4586 INTERCHANGEABLE
O-Ring
5950-00-731-9630SM-C-502636-2 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5315-00-874-449813-801 INTERCHANGEABLE
Pin,shoulder,headed
Pdi Ground Support Systems, Inc.
6760-00-927-474313801 INTERCHANGEABLE
Brush Ring Assembly
Kollmorgen Corp
5930-01-186-820813801 INTERCHANGEABLE
Switch,thermostatic
American Wyott Corporation Dba Apw Wyott Food Service Equipment
Cross-Reference Index
Part NumberManufacturer
138-01 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
5306-00-099-5033INTERCHANGEABLE
BOLT,SPECIAL
13801
5120-00-198-5400INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
4940-00-242-1448INTERCHANGEABLE
BLAST CLEANING MACHINE
6680-00-399-2777INTERCHANGEABLE
TRANSMISSION UNIT
13801
5975-00-415-6058INTERCHANGEABLE
NIPPLE,ELECTRICAL CONDUIT
1521-DC
5331-00-531-4586INTERCHANGEABLE
O-RING
5950-00-731-9630INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SM-C-502636-2
5315-00-874-4498INTERCHANGEABLE
PIN,SHOULDER,HEADED
13-801
6760-00-927-4743INTERCHANGEABLE
BRUSH RING ASSEMBLY
13801
5930-01-186-8208INTERCHANGEABLE
SWITCH,THERMOSTATIC
13801
5950-01-291-9141INTERCHANGEABLE
COIL,ELECTRICAL
13801
6515-01-343-8557INTERCHANGEABLE
GLOVES,SURGEONS'

Frequently Asked Questions

What is NSN 1660-01-641-4086?

NSN 1660-01-641-4086 is a Mask,oxygen, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-641-4086?

NSN 1660-01-641-4086 has 1 cross-referenced part number: 138-01 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 1660-01-641-4086?

There are 12 known substitutes for 1660-01-641-4086: 5306-00-099-5033, 5120-00-198-5400, 4940-00-242-1448 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138-01?

Key specifications for 138-01: Headband: PROVIDED; Design Type: NOSE; Part Name Assigned by Controlling Agency: FLAPPER. 3 total characteristics are documented in the Federal Logistics Information System.

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