PartsTable TECHNICAL DATA SHEET
NSN 4240-01-287-8050Government record, cited

Protector, Hearing4240-01-287-8050

NSN 4240-01-287-8050 · NIIN 012878050 · Part number 54375T35
Mcmaster-Carr Supply Co · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 39428
Government record, cited
NSN 4240-01-287-8050 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-287-8050. Manufacturer of record part number: 54375T35.
Also searched as  4240-01-287-8050 · 4240012878050 · NIIN 012878050 · 01-287-8050 · FSC 4240 Safety and Rescue Equipment · CAGE 39428 · 54375T35 · 54375T15 · 5572T13
Nearby stock numbers  ·
Features
  • Protector,hearing — FSC 4240
  • 1 manufacturer part number on file
  • Manufacturer of record: Mcmaster-Carr Supply Co
Identification
  • NSN: 4240-01-287-8050
  • NIIN: 012878050
  • FSC: 4240 — Safety and Rescue Equipment
  • FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
  • Primary part number: 54375T35
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Protector,hearing, cataloged under National Stock Number 4240-01-287-8050, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Mcmaster-Carr Supply Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-287-8050
Primary Part Number54375T35
Item NameProtector,hearing
FSC / FSG4240 / 42 — Safety and Rescue Equipment
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
54375T35 PRIMARY Mcmaster-Carr Supply Co (USA)
Reference documents
ReferenceMeaning
54375T15 5/9 Secondary reference
Mcmaster-Carr Supply Co
5572T13 5/9 Secondary reference
Mcmaster-Carr Supply Co
No interchangeability data on file.
Other items in FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file

Frequently Asked Questions

What is NSN 4240-01-287-8050?

NSN 4240-01-287-8050 is a Protector,hearing, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4240, Safety and Rescue Equipment. Status: active.

What part numbers are listed for NSN 4240-01-287-8050?

NSN 4240-01-287-8050 has 1 manufacturer part number on file: 54375T35 (Mcmaster-Carr Supply Co).

What are the specifications of 54375T35?

Key specifications for 54375T35: Special Features: NICKEL PLATED COPPER ANTI-SPARKING AND CORROSION RESISTANT HEADFRAME; FLUID FILLED, VENTILATED, SPONGE-PADDED HEAD FRAME AIR CUSHIONS; ADJUSTABLE; NOISE REDUCTION RATING - 21 DECIBELS. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4240-01-287-8050 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com